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.sum of 2 no is 50 and sum of there reciprocal is 1/12. So find these number
Read Solution (Total 7)
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- x+y=50
1/x=1/y=1/12
solving xy=600
x+600/x=0
solving x=20 or 30
y=30 or 20 - 12 years agoHelpfull: Yes(10) No(1)
- numbers are 30 and 20....
- 12 years agoHelpfull: Yes(5) No(1)
- x+y=50
1/x+1/y=1/12
solving xy=600
x+600/x=50
solving x=20 or 30
y=30 or 20 - 12 years agoHelpfull: Yes(4) No(1)
- x+y=50--->(1)
(1/x)+(1/y)=(1/12)---(2)
on rearranging (2) (x+y)/(xy)=(1/12)
from(1)x+y=50
therefore 60/(xy)=(1/12)
on simplifying the above eqn (y^2)-50y+600=0
on solving the above eqn the factors will be 20 and 30 - 12 years agoHelpfull: Yes(2) No(1)
- x+y=50
1/x+1/y=1/12
x+y/xy=1/12
xy=50*12=600
(x+y)^2=x^2+y^2+(2*xy)
2500=x^2+y^2+1200
=x^2+y^2=1300
now (x-y)^2=1300-2(xy)
=1300-1200
=100
x-y=10
x+y=50
x-y=10
so x=30
y=10 - 9 years agoHelpfull: Yes(1) No(0)
- x+y=50
1/x+1/y=1/12
solving xy=600
x+600/x=50
solving x=20 or 30
y=30 or 20 - 10 years agoHelpfull: Yes(0) No(1)
- so there r two solutions na? either y=30 and x=20 / y=20 and x=30.?
- 10 years agoHelpfull: Yes(0) No(0)
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