Renu spends 3/7 of her pocket money on purchasing new math book and is left with ₹220. Find the cost of math book. Please answer it with proper solution no spam answers will be tolerated and will be reported!
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Answer:
185
Step-by-step explanation:
let total pocket money be x
x-3x/7=220(she used 3/7 of her money)
4x/7=220
x=385
cost of book is (385-220)185
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