Make the equation only of there are some 25 paise coins and some 50 paise coins in a bag. The total number of coins 140 and the amount in bag is ₹50 . Fin the number of coin of each value in the bag.
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Step-by-step explanation:
Let the number of 25 paisa coins be x then the number of 50 paisa coins => (140-x).
0.25(x)+0.5(140-x)=50 => Multiply by 4 on both sides we get x+2(140-x)=200 =>x+280-2x =200 => 280-200=80=x. So there are 80 25 paisa coins and 60 50 paisa coins in the bag. Hope it helps you.
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