Question

In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives.

16	21	100
12	28	169
41	23	?

 

1. 169
2. 100
3. 121
4. 144

Answer 1

Correct Answer - Option 2 : 100

For this question, Logic is applicable row-wise.

Row 1st-

16 = 1 + 6 = 7

21 = 2 + 1 = 3

3rd term of row = (7 + 3)² = 10² = 100

Similarly,

This logic is applicable in Row 2nd as-

12 = 1 + 2 = 3

28 = 2 + 8 = 10

3rd term = (3 + 10)² = 13² = 169

and Now we will apply this is Row 3rd as-

41 = 4 + 1 = 5

23 = 2 + 3 = 5

3rd term of row = missing term = (5 + 5)² = 10² = 100

Hence, Option (2) is correct.