Distance = 282 km Speed of train 1 = 22 km/hr Speed of train 2 = 25 km/hr Relative speed = 22 + 25 = 47 km/hr Therefore, speed = distance/time ⇒ 47 = 282/Time ⇒ Time = 282/47 = 6 hrs
Two friend Himanshu and Naman appeared in an exam. The probability that Himanshu will Qualify the exam is 1/20 and Naman will Qualify the exam is 1/10. ...
If a coin is tossed 10 times then what is the probability of getting three heads?
A box contains 5 blue jellies, some red jelly and rest yellow jelly. The probability of picking a red ball at random is 3/10, while the probability of p...
There are three types of maggi masala maggi, aata maggi and vegetable maggi in a bag. The probability of picking a vegetable maggi at random is 6/11. Th...
A bag contains 18 black and 20 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
In a Polly bag, the distribution of red, white, and yellow rubber bands is in the ratio 7:3:8. Suppose the yellow rubber bands were reduced by 35 and th...
In a biased coin the probability of getting a head is 0.6, if we toss a coin 10times, what is the probability of getting exactly three heads?
A jar contains 10 oranges, 4 pink, 7 black, and 5 purple marbles. If a single marble is chosen at random from the jar, what is the probability that it i...
A word consists of 9 letters 5 consonants and 4 vowels. Three letters are chosen at random. What is the probability that more than one vowel will be sel...
Two hats are picked at random, what is the probability that all hats are of green colour?
