Question

Raju earns rupees 16000 per month. He spends 1/4 of his income on food 3/10 of the remainder on the house rent and 5/21 of the remainder on education of children. How much money is still left with him.

Answer 1

rupees spend in food=1/4×16000=4000

then remain money is 16000-4000=12000

rupees spend in remainder =3/10×12000=3600
remain money=12000-3600=8400
spend money on education=5/21×8400=2000
remain money=8400-2000
6400

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Answer 2

this is your answer...........