a box contains some 20 paise and 50 paise coin the amount of money in the box is rupees 6 if the number of 20% points is doubled and 50 paise points is tripled the amount of money in the box will be rupees 15 find the number of each type of points
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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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