40% of 60% of $$\frac{3}{5}$$th of a number is 504. What is 25% of $$\frac{2}{5}$$th of that number ?
A. 175
B. 180
C. 350
D. 360
E. None of these
Answer: Option C
Solution(By Examveda Team)
Let the number be xThen, 40% of 60% of $$\frac{3}{5}$$ of x = 504
⇒ $$\frac{40}{100}$$ × $$\frac{60}{100}$$ × $$\frac{3}{5}$$ × x = 504
⇒ $$\frac{18}{125}$$x = 504
⇒ x = $$\frac{504 × 125}{18}$$
⇒ x = 3500
∴ 25% of $$\frac{2}{5}$$ of 3500 :
= $$\frac{25}{100}$$ × $$\frac{2}{5}$$ × 3500
= 350
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