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Question

If `sqrt(1369) + sqrt(.0615 + x)` =  37.25, then `x` is equal to


Options:
A .  `10^-1`
B .  `10^-2`
C .  `10^-3`
D .  None of these
Answer: Option C

`sqrt(1369) + sqrt(.0615 + x)` =  37.25,  = 37 + `sqrt(.0615 + x)`   =  37.25   `hArr`  `sqrt(.0615 + x)` = 0.25

`hArr`  .0615  + `x` = `(0.25)^2`  =  0.0625  `hArr`   `x`  =  .001 =  `1/10^3` =  `10^-3`



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