Discussion Forum



1)

By how much percent is the four-fifth of 70 less than five-seventh of 112?


A) 42%

B) 30%

C) 24%

D) 36%

E) 45%

Answer:

Option B

Explanation:

Four-fifth of $70 = \frac{(70\times 4)}{5} = 56$

Five-Seventh of $112 = \left(\frac{5}{7}\right)\times 112 = 80$

Required % $= \frac{(80-56)}{80}\times100 =30$%