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Let the length and breadth of the rectangular field be 'l' metres and 'b' metres, respectively. Then, perimeter of the field = 2 X (l + b) = 82 So, (l + b) = 82 ÷ 2 = 41 (l + b)2 = l2 + b2 + 2lb = 1681 Also, l2 + b2 = 292 = 841 So, 2lb = 1681 - 841 = 840 So, lb = 840 ÷ 2 = 420 m2
A bag contains 9 Green and 10 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?
A is trying to break a bulb by throwing balls at it. If he hits the bulb 5 times in every 7 throws and bulb breaks 3 times out of 15 hits, then find the...
Out of 6 white marbles, 3 blue marbles, in how many ways we select one or more marbles?
40 pens are there in a box where 22 are red pens, ‘p’ are blue pens and remaining are black pens. If a pen is picked, the probability of getting blu...
In a lottery, there are 6 prizes and 30 blanks. A lottery is drawn at random. What is the probability of getting a prize?
Three persons. A, B and C. are given the same puzzle to solve. The probability that A, B and C will solve the puzzle is. 3/5., 2/3., and 1/4respectively...
Out of three girls and five boys, five children are to be randomly selected for a dance programme. What is the probability that all the selected childre...
Axe speaks truth only when Wye does not speak truth, then what is the probability that Zed does not speak truth on a question?
Two hats are picked at random, what is the probability that one is blue and one is yellow?
There are two bags P and Q. Bag P contains 5 Yellow and 6 Green balls while bag Q contains 6 Yellow and 5 Green balls. As a part of an experiment, a fai...
