Question

A fruit seller had some balls. He sells 40% balls and still has 420 balls. How many balls he had initially?

Answer 1

Answer:

Step-by-step explanation:

let the balls initially be x

therefore balls sold = 40/100 *x =2x/5

balls left = x - 2x/5 = 3x/5

now 3x/5=420

therefore x  = 420*5/3

=700 is the number of balls he had initially

hope it helps

Answer 2

Let Z be the number of initial balls

Z - ( Z x 0.4 ) is the same as Z x 0.6

Z x 0.6 = 420

Divide both sides by 0.6

z = 420/0.6

z = 700