Question 28

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

Solution

$$6\times5+4$$ = 30+4 = 34

$$3\times5+8$$ = 15+8 = 23

Let's assume 'y' in place of question mark.

$$7\times y+9 = 30$$

7y = 30-9 = 21

y = 3

Hence 3 will come in place of question mark.

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