hi i've been spending alot of time on this question and cant seem to get anywhere.. please help! the question is there is a triangle inside a circle...the diameter of the circle is 2 which is the base of the triangle... the centre of the circle is point O. Segment AO = OC = 1. A and C are on the ver...
two water pumps working simultaneously at their respective constant rates, took exactly 4 hours to fill a certain swimming pool. If the constant rate of one pump was 1.5 times faster than constant rate of the other, how many hours would it have taken the faster pump to fill the swimming pool if it h...
If a quality control check is made by inspecting a sample of 2 light bulbs from a box of 12 light bulbs, how many different samples can be chosen? a) 6 b) 24 c) 36 d) 66 e) 72 the answer is D the question is pretty easy and i know the answer is 12 choose 2, but what i'm struggling with is how to do ...
farooq.mazhar Wrote:Peter and Thomson complete a peace of work in 6 hrs. Peter is 1.5 faster than Thomson. If Peter would wanted to complete a peace of work independently, then Peter will takes ?
since we are discussing shortcuts....i came across another problem that went something like..." what is the sum of all integers from 132 to 531 inclusive?"
what is the average (arithmetic mean) height of the n people of a certain group? (1) the average height of the n/3 tallest people in the group is 6 feet 2 1/2inches ( in decimal this would be =2.5 inches), and the average height of the rest of the people in the group is 5 feet 10 inches (2) the sum ...