The difference between a positive proper fraction and its reciprocal is 17/72. The fraction is:

Options
- 9/8
- 7/8
- 6/9
- 7/9

CORRECT ANSWER : 9/8

Discussion Board
answer

x-1/x = 17/72
(x^2-1)72=17x
72x^2-81x+64x-72=0
9x(8x-9)+8(8x-9)=0
(9x+8) (8x-9)=0
x=9/8

nisha shah 05-9-2022 06:57 AM

Problems on numbers

Please provide explanation to the questions sir.. please

Brahmendra patchava 05-8-2020 05:31 AM

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