Bishop1monte:



What is this you answered. You used odd numbers for d samples and you used​ even number for the equation. Brother you need divine help from Jah

Loool. i have explained myself na

3 x 2 = 6 ... + 1 = 7 (1 that was added is the number before 2 [the least number in the equation])
5 x 4 = 20 ... + 3 = 23 (3 that was added is the number before 4 [the least number in the equation])
7 x 6 = 42 ... + 5 = 47 (5 that was added is the number before 6 [the least number in the equation])
9 x 8 = 72 ... + 7 = 79 (7 that was added is the number before 8 [the least number in the equation])

10 x 9 = 90 ... + 8 = 98 (8 that was added is the number before 9 [the least number in the equation])

Answer is 98

The numbers in the first line when reversed give 23

Cross the second and third line and it gives 47

Third and fourth line give 79

Repeat the sequence in the first line again to give 98.

11 × 10 =110 +9=119

LordofWar:


Lool. There is na

98

3 x 2 = 6 ... + 1 = 7 (1 that was added is the number before 2 [the least number in the equation])
5 x 4 = 20 ... + 3 = 23 (3 that was added is the number before 4 [the least number in the equation])
7 x 6 = 42 ... + 5 = 47 (5 that was added is the number before 6 [the least number in the equation])
9 x 8 = 72 ... + 7 = 79 (7 that was added is the number before 8 [the least number in the equation])

10 x 9 = 90 ... + 8 = 98 (8 that was added is the number before 9 [the least number in the equation])

maybe there is a shorter way to explain this.. but the above is how i arrived at 98

In your maths mind, knowing fully well that the foundation of maths is in recognition of pattern, is tthere a pattern in this your series 1, 3, 5, 7, 8?

As a mathematician, won't you rather go with this series, 1, 3, 5, 7, 9 which has a progressive odd numbers pattern?

Copy. Cat many here ooo

Answer is 119

23- 7 = 16

47- 23= 24

79- 47= 32

119- 79= 40

Nb: All have difference of 8

LordofWar:


3 x 2 = 6 ... + 1 = 7 (1 that was added is the number before 2 [the least number in the equation])
5 x 4 = 20 ... + 3 = 23 (3 that was added is the number before 4 [the least number in the equation])
7 x 6 = 42 ... + 5 = 47 (5 that was added is the number before 6 [the least number in the equation])
9 x 8 = 72 ... + 7 = 79 (7 that was added is the number before 8 [the least number in the equation])

10 x 9 = 90 ... + 8 = 98 (8 that was added is the number before 9 [the least number in the equation])

look at it this way.. i may also be wrong sha

Your answer is right, but there is no (clear) sequence between the numbers being added. Better still, express the 'sequence' 1,3,5,7 and 8, mathematically?

For, 1,3,5,7 and 9... we can easily express the sequence as (2n+1). Where 'n' is the term number. Simply put, a progression of odd numbers.. But for your 'sequence'...I can't see the rule to be applied.

verdict: there is a relationship,but no sequence _emphasis on sequence.

sonnie10:


In your maths mind, knowing fully well that the foundation of maths is in recognition of pattern, is tthere a pattern in this your series 1, 3, 5, 7, 8?

As a mathematician, won't you rather go with this series, 1, 3, 5, 7, 9 which has a progressive odd numbers pattern?

Loooool... you are just being difficult for no reason na haba.

Lets go with pattern as you've suggested

3 x 2 = 6 ... + 1 = 7
4 .... + 2
5 x 4 = 20 ... + 3 = 23
6 ... + 4
7 x 6 = 42 ... + 5 =
8 ....+ 6
9 x 8 = 72 ... + 7 = 79
10 x 9 = 90 ... + 8 = 98

99

98

visiondee:
if talking about sequence, 9 is what to be added because from the question, the first digit of the last question is added to the next multiplication, anyway I'm open to correction if wrong. Thanks

If its sequence, then "10 x" is incorrect.

It should have been "11 x"

Proudlyngwa:
How soon can you answer this

I don't know if this has been posted on nairaland before, saw it and decided to share.

98

98

LordofWar:
98

3 x 2 = 6 ... + 1 = 7
5 x 4 = 20 ... + 3 = 23
7 x 6 = 42 ... + 5 = 47
9 x 8 = 72 ... + 7 = 79

10 x 9 = 90 ... + 8 = 98

a x b + [b-1] = Answer (small play, and some peeps wan kill me its not my equation na

note the sequence of the figures being added ...

modified

look at it this way:

3 x 2 = 6 ... + 1 = 7 (1 that was added is the number before 2 [the least number in the equation])
5 x 4 = 20 ... + 3 = 23 (3 that was added is the number before 4 [the least number in the equation])
7 x 6 = 42 ... + 5 = 47 (5 that was added is the number before 6 [the least number in the equation])
9 x 8 = 72 ... + 7 = 79 (7 that was added is the number before 8 [the least number in the equation])

10 x 9 = 90 ... + 8 = 98 (8 that was added is the number before 9 [the least number in the equation])

maybe there is a shorter way to explain this.. but the above is how i arrived at 98

Going by the progression you started with, it should've been 9x10 = 90 + 9 = 99

PaperLace:

Your answer is right, but there is no (clear) sequence between the numbers being added. Better still, express the 'sequence' 1,3,5,7 and 8, mathematically?

For, 1,3,5,7 and 9... we can easily express the sequence as (2n+1). Where 'n' is the term number. Simply put, a progression of odd numbers.. But for your 'sequence'...I can't see the rule to be applied.

verdict: there is a relationship,but no sequence.

Loool.. thanks ojare, you were even objective in your analysis.. how about using the formula below

a x b + [b-1] = Answer

LordofWar:


Loool.. thanks ojare, you were even objective in your analysis.. how about using the formula below

a x b + [b-1] = Answer

Better, that's a 'formula', not a 'sequence'.
The problem everyone had, was you calling it a SEQUENCE...sorry ehn.

LordofWar:


Loool. i wrote formula na... kuku kill me

That's me agreeing with you na. I didn't arrange the 'sequence' of my words well .

tosynomolara:
11 × 10 =110 +9=119

From where did yhu get 11 x 10?

PaperLace:

That's a formula, not a sequence.
Better.

Loool. i wrote formula na... kuku kill me

110

LordofWar:
98

3 x 2 = 6 ... + 1 = 7
5 x 4 = 20 ... + 3 = 23
7 x 6 = 42 ... + 5 = 47
9 x 8 = 72 ... + 7 = 79

10 x 9 = 90 ... + 8 = 98

a x b + [b-1] = Answer (small play, and some peeps wan kill me its not my equation na

note the sequence of the figures being added ...

modified

look at it this way:

3 x 2 = 6 ... + 1 = 7 (1 that was added is the number before 2 [the least number in the equation])
5 x 4 = 20 ... + 3 = 23 (3 that was added is the number before 4 [the least number in the equation])
7 x 6 = 42 ... + 5 = 47 (5 that was added is the number before 6 [the least number in the equation])
9 x 8 = 72 ... + 7 = 79 (7 that was added is the number before 8 [the least number in the equation])

10 x 9 = 90 ... + 8 = 98 (8 that was added is the number before 9 [the least number in the equation])

maybe there is a shorter way to explain this.. but the above is how i arrived at 98

I Think it should be 99 because the added figure is odd numbers looking at it from 1,3,5,7and 9 not 8

119. Final answer!

NextProdigy:
110

1, 3, 5, and 7 are prime numbers. Next prime number is 11.

11 x 9 = 99 + 11 = 110

donhils:

Going by the progression you started with, it should've been 9x10 = 90 + 9 = 99

10 x 9 is quite different from 9 x 10...

101
3X2=6+1=7
4X5=20+3=23
6X7=42+5=47
8X9=72+7=79
10X9=90+11=101

Addition of next prime number

98

3×2+2-1=7
5×4+4-1=23
7×6+6-1=47
9×8+8-1=79
10×9+9-1=98

Proudlyngwa:
How soon can you answer this

I don't know if this has been posted on nairaland before, saw it and decided to share.

71

101...
1,3,5,7 are all prime numbers. The next prime number after 7 is 11.

(10x9) + 11 =101

Vanpascore:
101
3X2=6+1=7
4X5=20+3=23
6X7=42+5=47
8X9=72+7=79
10X9=90+11=101

Addition of next odd number

9 is the next odd number.

meskana212:
119 jhoor.....23-7=16, 47-23=24, 79-47=32...16, 24, 32....so the next common difference is 40 since they increase by 8. ...119-79=40

honestly i need some of whatever makes you think like this

why not the square of the first figure minus 2 that is 9*9-2=79, 10*10-2=98 apply same process for the rest. i neglected the second value. im sorry it only my formulae that is different

Yu were right

NextProdigy:


9 is the next odd number.