Usha has three times as money to rupees coins as she has five Rupees coin if she has in all a sum of rupees 77 how many coins are of each type
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Consider 2 rs coins as 3x and 5 rs coin as x
now as 2rs coins are 3x =6x
5rs coin are x=5x
adding both =11x=77
x=7
5rs coin =7 coins
2rs coin =7*3=21 coins
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