Question

The ratio of blue crayons to red crayons in a classroom is 32:28. The classroom has 16 blue crayons.

How many red crayons are in the classroom?

Answer 1

14 red crayons

Explanation:

since we already know the ratios of the crayons we are going to use ratio and proportion to solve our question B:R is 32:28 and they are directly proportional meaning we can scale the quantities by multiplying.32:28 and 16:R , r is the unknown quantity ,then we cross multiply the 2 ratios to get 32R= 448, then we divide by32 both sides so we can remain with the value of R which is 14

Answer 2

32/28=16/x
32x= 448
x=14
There are 14 red crayons in classroom