Question

A fruit vendor had some mangoes with him. He threw away 10%mangoes which were spoiled and sold 75%of the remaining. Still 90 mangoes remained with him. Find the total number of mangoes he had with him.​

Answer 1

75%+10%×90

=85

----------×90

100

=153

--------

5

Answer 2

let the total number of mangoes with him be X

Then ,

Number of spoiled mangoes = 10% of X

=> X/10

Number of sold mangoes = 75% of X

=> 75x / 100

=> 15x/20

=> 3x/4

According to the question :-

X / 10+ 3x / 4 + 90 = X

2x+15x+1800/ 20 = X

17x + 1800 = 20x

1800 = 20x - 17x

1800 = 3x

X = 1800/3

X = 600

Hence, he have 600 apples in all