Instructions

What will come in place of question mark (?) in the following questions ?

Question 91

$$17\frac{2}{5} \times \frac{5}{8} + ?=46\frac{7}{8}$$

Solution

Let the number to replace the question mark be equal to X.

So, $$17\frac{2}{5} \times \frac{5}{8} + X=46\frac{7}{8}$$
So, $$\frac{87}{5} \times \frac{5}{8} + X = \frac{375}{8}$$
So, $$ \frac{87}{8} + X = \frac{375}{8}$$

Therefore, $$X = \frac{288}{8} = 36$$

So, the correct answer is option (b)


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