Question

There are 100 beads in a box, some black and

some white ; 10 more black than white. How many

black, how many white?​

Answer 1

Answer:

50 are white kgcnlbcccmvxmj

Answer 2

Answer:

Let's denominate black bead as x and white bead as y

x + y = 100

x = y + 10

y + 10 + y = 100

2 y = 100 - 10 = 90

$y \: = \frac{90}{2} = 45 \\ y = 45 \\ x = 45 + 10 = 55$

Black bead = 55

White bead = 45