self Maths Puzzle

276+587=905then
190+543=.............

Read Solution (Total 0)

self Other Question

Four letters are to be placed in four addressed envelopes. If the letters are placed at random into the envelopes, find out the following probabilities.

The probability that none of the letters are placed in the right envelopes is:

a) 1/24

b) 3/8

c) 23/24

d) 13/24

e) None of the above Two squares are chosen at random on a chessboard. What is the probability that they have a side in common?