Question

Mona ate 2/5 part of a cake weighing 1 kg and her sister Rashi ate 1/5 of the same cake. Weight of the cake left is __________ grams

Answer 1

Total weight of the cake =1 kg

fraction Mona ate= 2/5

fraction Rashi ate = 1/5

So fraction of the cake eaten = 2/5+ 1/5 = 3/5

So fraction of the cake left = 1- 3/5= 2/5

1 whole cake= 1 kg

So 2/5 of the cake = 2/5 of 1 kg= 2/5 of 1000g

= 400g

Answer = 400 grams

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