A class of 40 puplis. 2/5 of them are boys How many are girls

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A class of 40 puplis. 2/5 of them are boys How many are girls​

There are 24 girls in the class.

Why?

  • Well, since 2/5 of the class are boys, and there are 40 pupils in the class, we first must get the 1/5 of 40(Divide 40 & 5, 40 divided y 5 is 8.)
  • Now that we have the 1/5 if 40, we must multiply is by 2, to get the 2/5 if 40 (8x2 = 16.) So there are 16 boys in the class.
  • Now that we know the number of boys in the class, we now just need to subtract the number of pupils and the number of boys in the class(4016.)
  • 40-16 =24

So there are 24 girls in the class.

#CarryOnLearning


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