The frog has three respiratory surfaces on its body that it uses to exchange gas with the surroundings: the skin, in the lungs and on the lining of the mouth. While completely submerged all of the frog's respiration takes place through the skin.
Two schools, A and B participate in a Quiz competition. The probability of A’s winning is 3/7 and the probability of B’s winning is 3/5. Wha...
The names of 10 students from section A, 12 students from section B and 14 students from section C were selected. The age of all the 36 students was dif...
A letter is taken out at random from ‘CHACHAKE’ and another is taken out from ‘PATAKHE’. The probability that they are the same letter is
...If the letters of the word HORIZON be arranged at random, what is the probability that vowels are not together?
Two cards are drawn at random from a pack of 52 cards. What is the probability that either both are black or both are queens?
A bag contains 9 black and 10 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
If a coin is tossed 10 times then what is the probability of getting three heads?
One bag contains 5 yellow hats and 4pink hats. Another bag contains 3 yellow hats and 7pink hats. If one hat is drawn from each bag, what is the probabi...
A box contains 13 black and 13 white balls. The probability of drawing two balls of the same colour is?
There are 5 Red caps, 3 Green caps and 2 Blue caps in a box. 4 caps are chosen at random. What is the probability of their being 2 Red and 2 Blue caps?
