Question

16. In the following question, select the number which can be placed at the sign of
question mark (?) from the given alternatives.
336 170 748
523 78 349
431. ? 328
1) 33
2) 34
3) 36
4) 37​

Answer 1

Given:

336     170    748

523     78     349

431       ?       328

To find:

The number which can be placed at the sign(?)

Calculation:

By observing the the data given in the question, it is clear that the second number in the row is difference of the product of the digits of the first number and third number

1st row:

336 = 3×3×6 = 54

748 = 7×4×8 = 224

224 - 54 = 170 (second number)

2nd row:

523 = 5×2×3 = 30

349 = 3×4×9 = 108

108 - 30 = 78 (second number)

3rd row:

431 = 4×3×1 = 12

328 = 3×2×8 = 48

48 - 12 = 36

The number which can be placed at the sign(?) is 36 [option(3)]