3/8 of a box of balls are red, 3/10 of them are green and the rest are black. If there are 36 green balls, how many black balls are there?

Guest Nov 10, 2021

#1**0 **

Green ball in the box 3/10 part =36 numbers. 1unit = 120 numbers.

Red balls =3/8×120=24 numbers

Black balls=Total number of balls - red balls+ green balls= 120- 36+24=60 numbers.

Guest Nov 22, 2021

#2**+1 **

Let total no. of balls be x

==> (3/10)*x = 36

==> x = 120

No. of black balls = x-(3/8x+3/10x) = 13x/40 = (13/40)*120 = 39 balls

Soyoxxommm Nov 24, 2021