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Barometer → measures atmospheric pressure. Manometer → measures pressure of gases/liquids. Ammeter → measures electric current. Only a thermometer measures temperature.
A bag contains 3 black and 9 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
In a bag, there are three different colour balls namely red, yellow and white. The sum of the number of yellow and red balls in the bag is equal to the ...
A box contains only three colors of balls- red, green and blue. What is the minimum number of balls that should be picked from the box to ensure that at...
The names of 8 students from section A, 9 students from section B and 10 students from section C were selected. The age of all the 27 students was diffe...
A is trying to break a bulb by throwing balls at it. If he hits the bulb 3 times in every 5 throws and bulb breaks 3 times out of 12 hits, then find the...
A bag contains 4 white balls, 5pink balls and 3 black balls. 2 balls are drawn randomly. What is the probability that there are no black balls?
A bag contains 20 white and some black balls. If the probability of drawing a black ball from the bag is 2.5 times that of drawing a white ball, find th...
What is the Probability of getting a sum of ‘9’ on rolling a dice twice?
A bag contains 6 Green and 8 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?
