Question

the sum of two numbers is 15, if the sum of their reciprocals is 3/10.find the numbers. please give answer fast

Answer 1

hey friend !!here is your answer
Sol:
Let one of the numbers be x.
Other number is (15 - x)
Sum of their reciprocals = 3/10
1/x + 1/(15 - x) = 3/10
(15 ) / (15x - x2) = 3/10
150 = 45x - 3x2
3x2 - 45x + 150 = 0
x2 - 15x + 50 = 0
(x - 10)(x - 5) = 0
x = 10 or 5

Therefore, the numbers are 10 and 5.
If x = 15

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Answer 2

Here Your answer is.......