Instructions

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

Question 91

$$3\frac{3}{4} \times 4\frac{5}{6} - ?=2\frac{3}{4}$$

Solution

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

So, $$3\frac{3}{4} \times 4\frac{5}{6}-X=2\frac{3}{4}$$
Therefore, $$\frac{15}{4} \times \frac{29}{6} - X = \frac{11}{4}$$
Therefore, $$\frac{145}{8} - X = \frac{11}{4}$$
Therefore $$X = \frac{123}{8} = 15\frac{3}{8}$$

Hence, the correct answer is option (d)


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