Leena has 117 rupees in the form of 5 rupees and 2 rupees coins. The number of 2 rupees coins 5 rupees. Find the number of each denomination

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Solution

Number of 5rs coin = x
number of 2rs coins = 4x

total money = 5x + 4x 2 = 5x+8x = 13x
13x = 117
x = 117/13 = 9

number of 5rs coins= x = 9
number of 2rs coins = 4x = 4*9 = 36

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