A train with a length of 150m long, takes 30 seconds to cross a 500m long bridge. How much time will the take to cross a 370m long platform?
In a class 75% passed in English, 60% in Mathematics and 25% failed in both the subjects. What is the percentage who passed in both subjects?
There are 3 green, 4 orange and 5 white colour bulbs in a bag. If a bulb is picked at random, what is the probability of having either a green green or a white bulb?
A man buys an article for 10% less than its value and sells it for 10% more than its value. His gain or loss percentage is-
In the figure, AD and BC are lines intersecting at O. What is the value of a?
30
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