A boy earns rupees 16000 per month. he spends 1/4 of his income of food, 3/10 of the remainder on house rent, and 5/21 of the remainder on the education of children. How much money is left?
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on food he spent 16000×1÷4=4000 rupees
remaining= 16000-4000=12000 rupees
on house rent he spent 12000×3÷10=3600 rupees
remaining=12000-3600= 8400 rupees
on education he spent 8400×5÷21=2000 rupees
remaining= 8400-2000=6400rupees
therefore the remaining money be 6400 rupees
remaining= 16000-4000=12000 rupees
on house rent he spent 12000×3÷10=3600 rupees
remaining=12000-3600= 8400 rupees
on education he spent 8400×5÷21=2000 rupees
remaining= 8400-2000=6400rupees
therefore the remaining money be 6400 rupees
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