Rs 195 contained in a box consists of one rupee, 50 paise and 25 paise coin in the ratio of 5:6:7. find the number of 50 paise coins.
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1rs : 50p : 25p
2 : 3 : 4
=> 2x : 3x : 4x - coins
1×2x:3x2:4x4 ratio of Rs.
=> 4x+3x+2x2=180
=> 9x2=180
x = 40
∴ number of coins of 50p => 40×3=120
2 : 3 : 4
=> 2x : 3x : 4x - coins
1×2x:3x2:4x4 ratio of Rs.
=> 4x+3x+2x2=180
=> 9x2=180
x = 40
∴ number of coins of 50p => 40×3=120
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