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8. One-fifth of a number decreased by 6 gives 9. Find the number.
9. The cost of 8 apples is 240. Find the cost of 15 such apples.
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Answer:
9. let the price of apple be x
8x = 240
x = 240/8
x= 30
15x=15(30)=450
sorry for answering only one
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