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A boy has Rs 728 in denomination of Rs 2 notes,Rs 5 notes and Rs 10 notes in the ratio of 3:2:4 respectively.What is the total number of notes he has? |
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Answer» Let the boy has `3x` 2 rupees notes. Then, he will have `2x` Rs 5 notes and `4x` Rs 10 notes. Total number of notes `= 3x+2x+4x = 9x` Also, we are given, `2(3x)+5(2x)+10(4x) = 728` `=>6x+10x+40x =728=> 56x = 728` `=> x = 13` So, he will have total number of notes `= 9**13 = 117` |
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