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AFCAT I 22 Jan 2025 Shift 1 Paper

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Question : 78 of 100

Marks: +1, -0

Study the given pattern carefully and select the number that can replace the question mark (?) in it.

First row - 12, 7, 32

Second row - 17, 13, 33

Third row - 14, 8, ?

(NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is NOT allowed)

38
35
43
42

Solution:

The logic followed here is :

(5 \times 1

st number

)-(4 \times 2

nd number

)=3

rd number

So,

- First row - 12, 7, 32

\;(5 \times 12)-(4 \times 7)=32

\;60-28=32

\;32=32(\;\text{ LHS }\;=\;\text{ RHS }\;)

And,

- Second row - 17, 13, 33

\;(\underline{5 \times 17})-(\underline{4 \times 13})=33

\;\underline{85-52}=33

\;33=33(\;\text{ LHS }\;=\;\text{ RHS }\;)

Similarly,

- Third row

-14,8

, ?

\;(\underline{5 \times 14})-(\underline{4 \times 8})=?

\;\underline{70-32}=?

\;38=?

Hence, "38" is the correct answer.

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