Discussion Forum



1)

7 is added to a certain number; the sum is multiplied by 5; the product is divided by 9 and 3 is subtracted from the quotient. The remainder left is 12. The number is :


A) 20

B) 30

C) 40

D) 60

Answer:

Option A

Explanation:

Let the number is x
So ,$\frac{5(x+7)}{9}-3=12$
=> 5(x+7)-27 = 108
=> 5x +35 = 135
=> 5x=135-35
=> 5x=100
=> x= 100/5 = 20