An urn contains 12 white balls and 8 red balls. Two balls are to selected in succession,at random and without replacement. What is the probability that both balls are white
Question
Maths
March 24, 2019, 10 p.m.
Answer
Speed of boat in still water is 15 km /h . it goes 30 km upstream and return back at the same point in 4 hours 30 minutes. find the speed of the stream.
Maths
March 24, 2019, 9:05 p.m.
Answer
check whether the relation R defined in the set of real numbers are equivalence R={(a,b):|a|=|b|}.
Maths
March 24, 2019, 8:56 p.m.
Answer
A 10m 50cm high vertical pole casts a shadow 6m long find at the same time the length of the shadow cast by another pole 5 m 60 cm high
How to find the radius when height is given using pythogorous theroem