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| 1. |
The sum of two number is 8. Determine the numbers if the sum of their reciprocal is 8/15. |
| Answer» let nos be x and 8 - x1/x + 1/8 -x\xa0=8/15(8-x+x)15=8(xx(8-x)120=64x - 8x28x2 - 64x +120=0x2-8x+15=0x2-5x-3x+15=0x(x-5) - 3(x-5)=0x=5 , 3\xa0 | |