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a boy spends 3/4 of his pocket money and then 4/5 of the remainder is given to his sister. If he has 40 left what did he have at first? |
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Answer» Answer: 800 Step-by-step EXPLANATION: X -3/4x is amount remaining with him after spending money. X -3/4x= x/4 (on solving) now he gave 4/5of remaining amount to his SISTER. = x/4 - 4/5 of x/4 = x/4 - x/5 = x/20 amount remaining with him is =40 x/20=40 x=800 his pocket money is 800 |
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