Two-fifth of one-fourth of three-seventh of a | vedclass

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(D) Let the number be $x$.According to the problem,$\frac{2}{5} 	imes \frac{1}{4} 	imes \frac{3}{7} 	imes x = 15$.Simplifying the left side: $\frac

Vedclass · Accepted Answer

$175$

Vedclass · Answer

(D) Let the number be $x$.According to the problem,$\frac{2}{5} 	imes \frac{1}{4} 	imes \frac{3}{7} 	imes x = 15$.Simplifying the left side: $\frac{2 	imes 1 	imes 3}{5 	imes 4 	imes 7} 	imes x = 15$.$\frac{6}{140} 	imes x = 15$.$\frac{3}{70} 	imes x = 15$.$x = 15 	imes \frac{70}{3} = 5 	imes 70 = 350$.We need to find half of the number,which is $\frac{x}{2}$.$\frac{x}{2} = \frac{350}{2} = 175$.

Two-fifth of one-fourth of three-seventh of a number is $15$. What is half of that number?

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