I am trying to solve this without squaring, just so that I arrive at the same conclusion.

Can someone solve this without squaring?

here is the way I solved it and hoped for an corrected answer down below, but didn't find. Maybe the answer choices have typo. 1) Positive case: x+1/x-1 < 4 x+1<4x-4 0<3x-5 5/3 < x 2) Negative case: (-1) x+1/x-1 < 4 -x-1/x-1 < 4 -x-1<4x-4 0<5x-3 3/5 < x we get, x > 5/3 and x > 3/5. Hence x>3/5 cover...

Please post OA, here is what I think: 1. To meet the rising marketing demand for fish and seafood, suppliers are growing fish twice as fast as their natural growth rate, cutting their feed allotment by nearly half and raising them on special diets. A. their natural growth rate, cutting their feed al...

Divisibility question

If x^3 – x = n and x is a positive integer greater than 1, is n divisible by 8? (1) When 3x is divided by 2, there is a remainder. (2) x = 4y + 1, where y is an integer. A Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B Statement (2) ALONE is sufficient, but stateme...

OG 12 - Probability

On page 118, " E or F " is the set of outcomes in E or F or both. " E and F " is the set of outcomes in both E and F. But P(E or F) = P(E) + P(F) - P(E and F). I know by additional rule that this is case, shouldn't "E or F" state " is the set of outcomes in E or F ...

Confidence that it will rebound again from the losses it is now about to suffer is ill founded, however, because _____________________ This sentence states that the rebound is baseless this time and the store is continuing to suffer. The best answer choice that describes a more concrete loss is A. ...

here is the way of how I solved it

Right, Left - legs

you have 10 Rs and 10 Ls

Prob of choosing R out of 20, then matching pair L from rest : 10/20 * 1/19 = 1/38.

similarly you can choose L first then R, hence 1/38 * 2 = 1/19.

Thanks

Thanks very much Stuart, your link to pseudo-coin is very helpful.