Question 62

If one-fifth of one-fourth of a number is 35, then what is seven-eighth of that number?

Solution

Let the required number = a

According to the problem,

$$\frac{1}{5}\times\frac{1}{4}\times a=35$$

$$=$$> $$a=35\times5\times4$$

$$=$$> $$a=700$$

$$=$$> $$\frac{7}{8}a=\frac{7}{8}\times700=612.5$$

$$\therefore\ $$Seven-eighth of the number = $$612.5$$

Hence, the correct answer is Option B

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