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Snepco Past Questions - Education (5) - 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 ennydammy11(m): 4:48pm On Oct 15
NisforNicky:
no calculators allowed


i jxt confirmed dis from the SNEPCO lady



How will they know if we use calculator?
Re: Snepco Past Questions by Xandre: 4:52pm On Oct 15
ennydammy11:


How will they know if we use calculator?

grin grin
Re: Snepco Past Questions by ennydammy11(m): 4:56pm On Oct 15
Xandre:
grin grin


Those calculation will waste someone's time

Do you know anyone that got the scholarship last year without using calculator?
Re: Snepco Past Questions by femi4: 5:04pm On Oct 15
NisforNicky:
working pls

Tobilyn77 post=94971613:



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
Yes, correct


1/S + 1/T = 1/72.....eq1

1/T + 1/C = 1/120........eq2

1/S + 1/C = 1/90.......eq3

Combining eq2 and eq 3

1/S - 1/T = 1/360......eq4

Combining eq1 and eq4

2/S = 6/360

2/S = 1/60.......S = 120

Hence using eq1
I/T = 1/72 - 1/120
1/T = 2/360
T = 180

Similarly, using eq2
1/C = 1/120 - 1/180
1/C = 1/360
C = 360


Three of them working together:
1/120 + 1/180 + 1/360 = 6/360 = 1/60 of the job

Hence, they ll complete the job in 60days
Re: Snepco Past Questions by NisforNicky: 5:11pm On Oct 15
ennydammy11:

How will they know if we use calculator?
u are on ur own
obey instructions u no want
Nigerian youth Sha
Re: Snepco Past Questions by NisforNicky: 5:14pm On Oct 15
femi4:
Yes, correct

1/S + 1/T = 1/72.....eq1
1/T + 1/C = 1/120........eq2
1/S + 1/C = 1/90.......eq3
Combining eq2 and eq 3
1/S - 1/T = 1/360......eq4
Combining eq1 and eq4
2/S = 6/360
2/S = 1/60.......S = 120
Hence using eq1 I/T = 1/72 - 1/120 1/T = 2/360 T = 180
Similarly, using eq2 1/C = 1/120 - 1/180 1/C = 1/360 C = 360

Three of them working together: 1/120 + 1/180 + 1/360 = 6/360 = 1/60 of the job
Hence, they ll complete the job in 60days


I was right then
although I used another faster method
Re: Snepco Past Questions by NisforNicky: 5:16pm On Oct 15
ennydammy11:



Those calculation will waste someone's time

Do you know anyone that got the scholarship last year without using calculator?

it's best you follow instructions
Re: Snepco Past Questions by femi4: 5:18pm On Oct 15
NisforNicky:


I was right then

although I used another faster method
I prefer to break it down for even a novice to understand
Re: Snepco Past Questions by NisforNicky: 5:27pm On Oct 15
Tobilyn77:
workings please

S + T = 72 days
.e 1/72 per day

T + C = 120 days
=1/120 per day

S + C = 90 days
i.e 1/90 per day


S + T + C = ?


combining all three (per day) eqns in addition

S + T + T+ C + S + C = 2S + 2C + 2T = 2(S + T + C)

2(S + T + C) = 2 (1/72 + 1/120 + 1/90)
= 2 (12/360)

we invert the value in the brackets to get the total no. of days (no longer each day)

= 2 x 360/12 = 720/12 = 60 days.

QED


cc femi4 ivumar ennydammy11
Re: Snepco Past Questions by ennydammy11(m): 5:58pm On Oct 15
NisforNicky:


I was right then

although I used another faster method

Can u show us the faster method?
Re: Snepco Past Questions by ennydammy11(m): 5:59pm On Oct 15
NisforNicky:


it's best you follow instructions
Okay
Re: Snepco Past Questions by NisforNicky: 6:03pm On Oct 15
ennydammy11:

Can u show us the faster method?
it's above your quote
Re: Snepco Past Questions by Grateful02(m): 7:47pm On Oct 15
Lol.. Which department you dey?
NisforNicky:


God no go ever forget you when you need am



im grateful


the maths is giving me issues honestly
Re: Snepco Past Questions by SPLENDID25(m): 8:44pm On Oct 15
Amakiri spent N125 for a camera and some film. The camera cost N100 more than the film. What percent of the cost of the two items did Amakiri spend for the camera?
Re: Snepco Past Questions by NisforNicky: 9:21pm On Oct 15
SPLENDID25:
Amakiri spent N125 for a camera and some film. The camera cost N100 more than the film. What percent of the cost of the two items did Amakiri spend for the camera?

ans: 90%

workings:

let camera cost be x
let film cost be y

x + y = 125

price of x is 100 more than y

x = 100 + y

but x + y = 125

100 + y + y = 125

100 + 2y = 125

2y = 125 - 100

2y = 25

y = 25/2 = 12.5

so

x + y = 125

x + 12.5 = 125

x = 125 - 12.5

x = 112.5 (confirm 112.5 is 100 more than 12.5)

% of x = x/125 times 100

= 112.5/125 x 100 = 90%


is it clear bro?
Re: Snepco Past Questions by NisforNicky: 11:48pm On Oct 15
check ur mails
dey jxt snt anoda mail
Re: Snepco Past Questions by SPLENDID25(m): 12:22am On Oct 16
NisforNicky:

ans: 90%
workings:
let camera cost be x let film cost be y
x + y = 125
price of x is 100 more than y
x = 100 + y
but x + y = 125
100 + y + y = 125
100 + 2y = 125
2y = 125 - 100
2y = 25
y = 25/2 = 12.5
so
x + y = 125
x + 12.5 = 125
x = 125 - 12.5
x = 112.5 (confirm 112.5 is 100 more than 12.5)
% of x = x/125 times 100
= 112.5/125 x 100 = 90%

is it clear bro?
clear! thank you
Re: Snepco Past Questions by Peter31102(m): 12:33am On Oct 16
solve this guys grin


 A father said to his son, "I was as old as you are at the present at the time of your birth". If the father's age is 38 years now, what was the son's age five years back?
A. 18 years
B. 14 years
C. 22 years
D. 20 years
Re: Snepco Past Questions by Peter31102(m): 12:34am On Oct 16
NisforNicky:
check ur mails

dey jxt snt anoda mail

no calculator

1 Like

Re: Snepco Past Questions by Peter31102(m): 12:38am On Oct 16
The throughput was red in my system suitability check � ....how abt that?�
Re: Snepco Past Questions by ThankGod001(m): 5:41am On Oct 16
Me too, i just mailed scholastica

what about REFLEXIVE CONNECTIVIY ?
Peter31102:
The throughput was red in my system suitability check � ....how abt that?�

1 Like

Re: Snepco Past Questions by Peter31102(m): 5:52am On Oct 16
ThankGod001:
Me too, i just mailed scholastica
what about REFLEXIVE CONNECTIVIY ?
connectivity was yellow
Re: Snepco Past Questions by SPLENDID25(m): 5:56am On Oct 16
Peter31102:
The throughput was red in my system suitability check � ....how abt that?�
try a wired connection
Re: Snepco Past Questions by ThankGod001(m): 5:56am On Oct 16
Yours was okay?
SPLENDID25:
try a wired connection
Re: Snepco Past Questions by Peter31102(m): 6:04am On Oct 16
SPLENDID25:
try a wired connection
SPLENDID25:
try a wired connection
But what is it testing for sef ,I mean the throughput smiley
Re: Snepco Past Questions by ThankGod001(m): 6:10am On Oct 16
im not too concerned about the throughput, as it tests ur internet connection strength

1 Like

Re: Snepco Past Questions by NisforNicky: 7:05am On Oct 16
ThankGod001:
im not too concerned about the throughput, as it tests ur internet connection strength

I think camera, mic and connectivity are the most important
Re: Snepco Past Questions by SPLENDID25(m): 7:14am On Oct 16
Peter31102:



But what is it testing for sef ,I mean the throughput smiley
https://www.dnsstuff.com/network-throughput-bandwidth
Re: Snepco Past Questions by NisforNicky: 7:44am On Oct 16
Peter31102:
solve this guys grin


 A father said to his son, "I was as old as you are at the present at the time of your birth". If the father's age is 3838 years now, what was the son's age five years back?
A. 18 years
B. 14 years
C. 22 years
D. 20 years

3838 or 38?
Re: Snepco Past Questions by Sgbate(m): 8:54am On Oct 16
Got the same error even after using WiFi and modem differently, I just hope it isn't much of a concern.

Re: Snepco Past Questions by Abs99: 10:26am On Oct 16
Sgbate:
Got the same error even after using WiFi and modem differently, I just hope it isn't much of a concern.


What's the test about??
Re: Snepco Past Questions by Sgbate(m): 11:21am On Oct 16
Abs99:



What's the test about??
To check your system compatibility/suitability

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