Question
A device that provides surge protection and battery
backup is called _______. ÂSolution
Provides battery backup and surge protection. Â
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...
- There are black and white marbles in a jar in the ratio 4:5. After 20 marbles of each type are added, the ratio becomes 6:7. Find the original number of wh...
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 card is drawn randomly from a collection of total face cards. What is the probability that the drawn card is a jack?
A bag contains (a + 2) red pens, (a – 3) green pens, and (a – 7) blue pens. Two pens are drawn in succession without replacem...
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...
If 2 pens are drawn at random what is the probability that none of them is blue?
A person wanted to visit four places Chennai, Bangalore, Delhi, and Mumbai in one trip. Find the probability of the person visiting Chennai immediately ...
A box contains 7 blue and 7 green balls. The probability of drawing three balls of the same colour is
- Find the probability of selecting a heart or a diamond card from a well shuffled deck.
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