Question

A café has three different colours of plates in the ratiogrey : white : black = 3 : 8 : 5. The café has 304 plates altogether. Work out how many grey plates the café has​

Answer 1

grey = 3x

white = 8x

black = 5x

3x + 8x + 5x = 304

16x = 304

x = 304/16

x = 19

we require the number of grey plates

grey plates = 3x

grey plates = 3×19

grey plates = 57

the number of grey plates in the cafe is 57

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