Question

on decreasing a number by 18% it
becomes 779 find the number​

Answer 1

Step-by-step explanation:

Hi,

Let the number be X.

Then,

18℅ of X = 18/100 × X = 9/50×X = 9X/50

According to the question,

X - 9X/50 = 779

(50X - 9X )/50 = 779

(50X - 9X) = 779 × 50

41X = 779 × 50

X = (779*50/41)

X = 19 × 50

X = 950.

Hence,

The number is 950.

Hope it will help you :)

Answer 2

Step-by-step explanation:

Let the number be x.

A.T.Q,

x-18% of x =779

= x - 18 × X/100 =779

= 100x - 18x /100 = 779

= 82x /100 =779

x = 779*100 /82

x =950

Hence the number be 950