1.

Bansi has 3 times as many two-rupee coins as he has five-rupee coins. Ifhe has in all a sum of ` 77, how many coins of each denomination does he have?​

Answer»

on: LET the number of five-rupee coins that BANSI has be x. Then the number oftwo-rupee coins he has is 3 times x or 3x. The AMOUNT Bansi has: (i) from 5 rupee coins, ` 5 × x = ` 5x (ii) from 2 rupee coins, ` 2 × 3x = ` 6x HENCE the total money he has = ` 11x But this is given to be ` 77; therefore, 11x = 77 x =77/11 x= 7 Thus, number of five-rupee coins = x = 7 and number of two-rupee coins = 3x = 21 ..................(SOLUTION)



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