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Arithmetic 

Gaurav bought three apples , five mangoes and eight bananas for ₹87 , had he bought five apples , seven mangoes and six bananas , it would have cost him ₹121 . By how much do an apple and a mango together cost more than banana .

A. 15
B. 17
C. 19
D. 20

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17 comments

  1. 17

    Approach:
    let the cost of an apple, a mango and a banana be x,y,z respectively
    we have,
    3x+5y+8z=87……………(1)
    5x+7y+6z=121 …………(2)

    subtracting (1) from (2), we get
    x+y-z=17 which is the required answer.

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