Question
There are 280 balls in Diana's collection. The number of her black balls is 6 times the number of her grey balls.
  1. How many grey balls does she have?
  2. How many black balls does she have?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

There are 280 balls in Diana's collection. The number of her black balls is 6 times the number of her grey balls.
  1. How many grey balls does she have?
  2. How many black balls does she have?