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Milk is deficient in Iron.
A student is required to select 4 questions to attempt from a set of 10 questions. How many different ways can the student make this selection?
In a factory which manufactures calculators, machines A, B and C manufacture respectively 25%, 35% and 40% of the calculators. Of their outputs, 5, 4 an...
Mohit is a teacher and he teach some students in two (Morning & evening) slots. There are 5 boys and ‘x’ girls in morning slot, while there are ‘x...
Five squares of a chessboard are chosen at random, the probability that three are of one colour and two of another is
A box contains 6 red, 4 blue, 2 green and 4 yellow pens. If four pens are picked at random, what is the probability that one is green, two are blue and ...
A box contains 21 ribbons out of which [A] ribbons are white, and rest is green in colour. The probability of drawing a white ribbon and a green ribbon ...
If the letters of the word PLAYERS be arranged at random, what is the probability that there are exactly five letters between P and S?
In a lottery, there are 11 prizes and 30 blanks. A lottery is drawn at random. What is the probability of getting a prize?
In a box there are 12 orange, 5 white, and 7 blue balls. One ball is picked up randomly. What is the probability that it is neither white nor blue?
...Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probabili...
