3 balls are drawn randomly from a bag contains 3 black, 5 red and 4 blue balls. What is the probability that the balls drawn contain balls of different colors?
An agent gets a commission of 2.5% on the sales of cloth. If on a certain day, he gets Rs.12.50 as
commission, the cloth sold through him on that day is worth
a) Rs.250 b) Rs.500 c) Rs.750
d) Rs.1250 e) None of these
A Students was asked to find the arithmetic mean of the numbers 3, 11, 7, 9, 15, 13, 8, 19, 17,
21, 14 and x. He found the mean to be 12. What should be the number in place of x?
a) 3 b) 7 c) 17
d) 31 e) None of these
The person who can solve mathematical problems,can lead life easily ,Maths tellu that every problem as solution...we can find number of solutions for one problem ...Aplly it in the life also we can lead our life happily...
swetha
mathematics is the indispensible instrument of all physical research