a bag contains rupees 450 in the form of one rupee coins, Two Rupee coins and 50 rupees coins in the ratio of 9 :7 : 4 find the number of coins of each type
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1. 2. 50. Are the coins. Let the ratio me x. So 9x 7x. 4x. Multiply the coins and the ratios. 9x+14x+200x=450 223x=450. X=2. 1 rupee coins 9x=9*2=18 coins 2 rupee coins 7x=7*2=14 coins. 50 rupee coins 4x=4*2=8 coins approx
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