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A class has 72 students. Boys and girls are in the ratio 4 : 5. How many more girls than boys are there?

Class 6Dividing in a Given RatioRatio and Proportion
  • A32
  • B1
  • C40
  • D8

Step-by-Step Solution

One part = 72 ÷ 9 = 8. Boys = 32, girls = 40, difference = 8 (exactly one part).
Answer: D) 8

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