Cost of 20 notebooks is ₹180. Find the cost of 15 such books
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Answer:
20 notebooks = 180 rupeey
15 notebooks = 180/20 x 15
= 135 rupees
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cost of 20 notebooks = ₹180
cost of 1 notebook = 180/20 = 9 Rs .
cost of 15 notebooks = 9 × 15 = 135 Rs.
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