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Snepco Past Questions - Education (4) - Nairaland

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Nnpc/snepco Past Questions / Nnpc/snepco Past Questions / NNPC/SNEPCO Scholarship Past Questions 2000 - 2019 PDF (2) (3) (4)

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Re: Snepco Past Questions by SPLENDID25(m): 9:06pm On Oct 14
ivumar:
Nice... You assumed the lower row to be that of frequency, right?
yes Sir

1 Like

Re: Snepco Past Questions by femi4: 9:31pm On Oct 14
NisforNicky:


pls can you find the interquartile range

cc ivumar femi4
That table has issue. Not showing frequency row

1 Like

Re: Snepco Past Questions by NisforNicky: 12:16am On Oct 15
Verbal

Cc jpawjpaw thankGod001

Re: Snepco Past Questions by NisforNicky: 12:19am On Oct 15
Morree

Re: Snepco Past Questions by jpawjpaw(m): 12:19am On Oct 15
NisforNicky:
cc femi4

now, this one below is from the recently concluded SPDC

mete3
a man and a woman can do a work for 4 days.

x + y = 4 (man = x and woman = y)
while the woman alone can do the work for 6 days.
y = 6.
how long will it take the man to do the work?
if x+y = 4
when y = 6
x + 6 = 4
x = 4-6
x = -2
by ignoring the sign,
x = 2//
so it will take the man 2days to do the work.

abeg I stand to be corrected.
the question carry weight grin

1 Like

Re: Snepco Past Questions by NisforNicky: 12:21am On Oct 15
good night people

all the rest are not clear at all

good luck everyone

Re: Snepco Past Questions by NisforNicky: 12:22am On Oct 15
jpawjpaw:

a man and a woman can do a work for days.

x + y = 4 (man = x and woman = y)
while the woman alone can do the work for 6 days.
y = 6.
how long will it take the man to do the work?
if x+y = 4
when y = 6
x + 6 = 4
x = 4-6
x = -2
by ignoring the sign,
x = 2//
so it will take the man 2days to do the work.

abeg I stand to be corrected.
the question carry weight grin

hmmmm........
this is what I did too

ivumar femi4 pls confirm
Re: Snepco Past Questions by NisforNicky: 12:25am On Oct 15
jpawjpaw:

a man and a woman can do a work for days.

x + y = 4 (man = x and woman = y)
while the woman alone can do the work for 6 days.
y = 6.
how long will it take the man to do the work?
if x+y = 4
when y = 6
x + 6 = 4
x = 4-6
x = -2
by ignoring the sign,
x = 2//
so it will take the man 2days to do the work.

abeg I stand to be corrected.
the question carry weight grin

I think
no need to ignore the sign

- shows the man will finish the job 2 days less than the 4 days when they did it together
Re: Snepco Past Questions by Xandre: 1:29am On Oct 15
jpawjpaw:

a man and a woman can do a work for 4 days.

x + y = 4 (man = x and woman = y)
while the woman alone can do the work for 6 days.
y = 6.
how long will it take the man to do the work?
if x+y = 4
when y = 6
x + 6 = 4
x = 4-6
x = -2
by ignoring the sign,
x = 2//
so it will take the man 2days to do the work.

abeg I stand to be corrected.
the question carry weight grin
Both of them can do it for 4Days, how then can only the man do it for 2Days?

It's 12Days Sha...but not in the options

1 Like

Re: Snepco Past Questions by femi4: 5:12am On Oct 15
NisforNicky:


hmmmm........
this is what I did too

ivumar femi4 pls confirm
Can't you see that laugh emoji at the end of his solutions. As you can see, some of the question were either incorrect or answer missing from the options

Besides, you can't finish a job working alone in lesser days than the no of days both of them will use to complete same job.

2 Likes

Re: Snepco Past Questions by ThankGod001(m): 6:06am On Oct 15
nice
NisforNicky:


Finally


Cc thankGod001
Re: Snepco Past Questions by ThankGod001(m): 6:08am On Oct 15
SPDC when was that?
NisforNicky:
cc femi4

now, this one below is from the recently concluded SPDC

mete3
Re: Snepco Past Questions by ivumar: 6:46am On Oct 15
femi4:
Can't you see that laugh emoji at the end of his solutions. As you can see, some of the question were either incorrect or answer missing from the options

Besides, you can't finish a job working alone in lesser days than the no of days both of them will use to complete same job.

Can't you see that laugh emoji at the end of his solutions.
Lolll

1 Like

Re: Snepco Past Questions by ivumar: 6:48am On Oct 15
SPLENDID25:
yes Sir
Alright Boss
Re: Snepco Past Questions by ivumar: 6:49am On Oct 15
NisforNicky:


hmmmm........
this is what I did too

ivumar femi4 pls confirm

Wrong Sir
Re: Snepco Past Questions by NisforNicky: 7:56am On Oct 15
ivumar:


Wrong Sir

alright
pls

A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?

A. 40 days

B. 23 days

C. 37 ½ days

D. 37 days


cc femi4
Re: Snepco Past Questions by NisforNicky: 7:59am On Oct 15
femi4:
Can't you see that laugh emoji at the end of his solutions. As you can see, some of the question were either incorrect or answer missing from the options

Besides, you can't finish a job working alone in lesser days than the no of days both of them will use to complete same job.

A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work in

A.18 days
B.6 days
C. 4 days
D. 8 days

cc ivumar

I got 8
Re: Snepco Past Questions by femi4: 8:50am On Oct 15
NisforNicky:


alright
pls

A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?

A. 40 days

B. 23 days

C. 37 ½ days

D. 37 days


cc femi4
A does 80% of job in 20 Days. Hence, 100% of job in (100/80) x 20 = 25 Days

A alone can complete the job in one day (1/25) portion

A and B do 20% of job in 3 Days. Hence, 100% of job in (100/20) x 3 = 15 Days

A and B can complete the job in one day (1/15) portion

B alone can complete the job in one day

[(1/15) - (1/25)] = [(5- 3 )/75] = [2/75] portion

B alone can complete the job = (75/2) = 37.5 Days

5 Likes

Re: Snepco Past Questions by femi4: 9:02am On Oct 15
NisforNicky:


A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work in

A.18 days
B.6 days
C. 4 days
D. 8 days

cc ivumar

I got 8
4days

2A = B
Hence, A = 12/2 = 6days

Working together 1/6 + 1/12 = 1/4 of the job/day

Hence, the job will be completed in 4days by A and B working together

3 Likes

Re: Snepco Past Questions by ivumar: 9:34am On Oct 15
femi has given solutions.
Hope you understood?

2 Likes

Re: Snepco Past Questions by NisforNicky: 10:04am On Oct 15
femi4:
A does 80% of job in 20 Days. Hence, 100% of job in (100/80) x 20 = 25 Days

A alone can complete the job in one day (1/25) portion

A and B do 20% of job in 3 Days. Hence, 100% of job in (100/20) x 3 = 15 Days

A and B can complete the job in one day (1/15) portion

B alone can complete the job in one day

[(1/15) - (1/25)] = [(5- 3 )/75] = [2/75] portion

B alone can complete the job = (75/2) = 37.5 Days

thanks femi

I gt confused by the 80%
Re: Snepco Past Questions by NisforNicky: 10:05am On Oct 15
femi4:
4days
2A = B Hence, A = 12/2 = 6days
Working together 1/6 + 1/12 = 1/4 of the job/day
Hence, the job will be completed in 4days by A and B working together

ohhhhh
my mistake was doing A=2B
thanks again femi4 and ivumar
Re: Snepco Past Questions by NisforNicky: 10:36am On Oct 15
femi4:
A does 80% of job in 20 Days. Hence, 100% of job in (100/80) x 20 = 25 Days

A alone can complete the job in one day (1/25) portion

A and B do 20% of job in 3 Days. Hence, 100% of job in (100/20) x 3 = 15 Days

A and B can complete the job in one day (1/15) portion

B alone can complete the job in one day

[(1/15) - (1/25)] = [(5- 3 )/75] = [2/75] portion

B alone can complete the job = (75/2) = 37.5 Days


1. A alone can do a piece of work in 10 days and B alone can do it in 15 days. In how many days will A and B together do the same work?
(a) 5
(b) 6
(c) 8
(d) 9

2. It takes 6 men 10 days to paint 2 rooms. How long will it take 4 men to paint 6 rooms?

A. 42
B. 45
C. 62
D. None of the options

cc ivumar femi4
Re: Snepco Past Questions by Xandre: 11:22am On Oct 15
NisforNicky:



1. A alone can do a piece of work in 10 days and B alone can do it in 15 days. In how many days will A and B together do the same work?
(a) 5
(b) 6
(c) 8
(d) 9

2. It takes 6 men 10 days to paint 2 rooms. How long will it take 4 men to paint 6 rooms?

A. 42
B. 45
C. 62
D. None of the options

cc ivum ar fe mi4
BB


Yes to your question on Jim Ovia

1 Like

Re: Snepco Past Questions by femi4: 12:02pm On Oct 15
NisforNicky:



1. A alone can do a piece of work in 10 days and B alone can do it in 15 days. In how many days will A and B together do the same work?
(a) 5
(b) 6
(c) 8
(d) 9

2. It takes 6 men 10 days to paint 2 rooms. How long will it take 4 men to paint 6 rooms?

A. 42
B. 45
C. 62
D. None of the options

cc ivumar femi4
1. 1/15 + 1/10 = 25/150
= 1/6 of the job/day

Hence, working together will take them 6days to complete the job



2. 4men will paint 2 rooms in 6*10/4 = 15days

Hence, painting of 6 rooms by 4 men = 15*3 =45days

2 Likes

Re: Snepco Past Questions by NisforNicky: 1:58pm On Oct 15
femi4:
1. 1/15 + 1/10 = 25/150
= 1/6 of the job/day

Hence, working together will take them 6days to complete the job



2. 4men will paint 2 rooms in 6*10/4 = 15days

Hence, painting of 6 rooms by 4 men = 15*3 =45days


thanks a lot
Re: Snepco Past Questions by NisforNicky: 1:59pm On Oct 15
Xandre:
BB

Yes to your question on Jim Ovia
wow since when?
Re: Snepco Past Questions by NisforNicky: 2:17pm On Oct 15
femi4:
1. 1/15 + 1/10 = 25/150
= 1/6 of the job/day

Hence, working together will take them 6days to complete the job



2. 4men will paint 2 rooms in 6*10/4 = 15days

Hence, painting of 6 rooms by 4 men = 15*3 =45days


7. Smith and Thomas can do a piece of work in 72 days; Thomas and Clark can do it in 120 days; Smith and Clark can do it in 90 days. In what time can Smith, Thomas and Clark do it, working together?
(a) 60 days
(b) 66 days
(c) 75 days
(d) 80 days


I got A. 60
Re: Snepco Past Questions by NisforNicky: 2:32pm On Oct 15
ThankGod001:
SPDC when was that?
last month, I think
Re: Snepco Past Questions by NisforNicky: 3:11pm On Oct 15
no calculators allowed


i jxt confirmed dis from the SNEPCO lady


Re: Snepco Past Questions by Iamcyborg(f): 4:16pm On Oct 15
NisforNicky:
pls can u show full workings


7. Smith and Thomas can do a piece of work in 72 days; Thomas and Clark can do it in 120 days; Smith and Clark can do it in 90 days. In what time can Smith, Thomas and Clark do it, working together?
(a) 60 days
(b) 66 days
(c) 75 days
(d) 80 days


I got A. 60
Re: Snepco Past Questions by Tobilyn77: 4:17pm On Oct 15
NisforNicky:



7. Smith and Thomas can do a piece of work in 72 days; Thomas and Clark can do it in 120 days; Smith and Clark can do it in 90 days. In what time can Smith, Thomas and Clark do it, working together?
(a) 60 days
(b) 66 days
(c) 75 days
(d) 80 days


I got A. 60
workings please

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