4. A man weighs 72 kg. His wife’s weight is 25% less than his. If


4. A man weighs 72 kg. His wife’s weight is 25% less than his. If their son weighs 10% more
than his mother, find the son’s weight.
5. (a) Bimal secured 750 marks out of a total of 900. What percentage of marks didhe secure?


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