A purse contain rs. 27 and 25p. in 50p and 25 p. coins. if total no. of coins is 70 how many of 50 paisa coin
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Let x be the 50 paise coins and y be the 25 paise coins. Total amount = 70 Rs.= 70 x 100 = 7000 paise. 50 x + 25 y = 7000 -----------(1)
Given number of 50 P coins is three times the number of 25 p coins i.e. x = 3y ---------(2)
From (1) and (2) we get 50 × 3y + 25 y = 7000 175 y = 7000 y = 7000/ 175 = 40 And x = 3y = 3 × 40 = 120 ∴ Number of 50 Paise coins = 120 and number of 25 paise coins = 40.
Given number of 50 P coins is three times the number of 25 p coins i.e. x = 3y ---------(2)
From (1) and (2) we get 50 × 3y + 25 y = 7000 175 y = 7000 y = 7000/ 175 = 40 And x = 3y = 3 × 40 = 120 ∴ Number of 50 Paise coins = 120 and number of 25 paise coins = 40.
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