Question

Which one of the options will replace the question mark in the following
15(79)4, 25(415)15, 12(129)9, 13(181)12, 22(?)6?

Pick ONE option​

Answer 1

Answer:

Option no 4 4️⃣ I think.Yaa its the right one

Answer 2

15(79)4 , 25(415)15 , 12(129)9 , 13(181)12 , 22(160)6

The number in question mark is 160

Given :

15(79)4 , 25(415)15 , 12(129)9 , 13(181)12 , 22(?)6

To find :

The option will replace the question mark

A. 160

B. 165

C. 95

D. 105

Solution :

Step 1 of 3 :

Write down the given data

Here it is given that

15(79)4 , 25(415)15 , 12(129)9 , 13(181)12 , 22(?)6

Step 2 of 3 :

Find the pattern

15(79)4 ⇒ 15( = [ 15 × 4 ] + 15 + 4 )4

25(415)15 ⇒ 25( = [ 25 × 15 ] + 25 + 15 )15

12(129)9 ⇒ 12( = [ 12 × 9 ] + 12 + 9 )9

13(181)12 ⇒ 13( = [ 13 × 12 ] + 13 + 12 )12

Thus the pattern is as below

a( = [ a × b ] + a + b )b

Step 3 of 3 :

Find the required number in question mark

22(?)6 ⇒ 22( = [ 22 × 6 ] + 22 + 6 )6

? ⇒ 160

Hence the correct option is A. 160

Correct question : Which one of the options will replace the question mark (?) in the following sequence so that it will complete the series.

15(79)4, 25(415)15, 12(129)9, 13(181)12, 22(?)6

A. 160 B. 165 C. 95 D. 105

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