in a class , the ratio of pupils who wear watches to thoes who don't wear watches is 5:3 if there are 40 pupils in the class find the number of pupils who don't wear watches
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0
Answer:
15
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Let the number of people who wear watches be 5x
Let the people who don't wear watches be 3x
5x+3x=40
8x=40
x=40/8
x=5
Number of people who don't wear watches=3x=3×5=15
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