21 24 36 11 14 12 3 ? 4 77 112 108

RRB NTPC Mains or Stage 2 Model Paper 8 with solutions

DIRECTIONS (Qs. 54-55): In the following questions find the missing number

Question : 55 of 120

Marks: +1, -0

Solution:

3 × 7 = 21, 11 × 7 = 77

4 × 9 = 36, 12 × 9 = 108

Therefore,

14 × 8 = 112

? × 8 = 24

? = 3

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