RRB Government Jobs Exams Category

You wish to temporarily mount a wire to serve as the antenna of your transmitter in your laboratory. It is necessary that this be straight and as long as possible. You recall that when you had the floor covered required exactly 200 square yards of carpet and that the long side of the room was 20 yards. You also know that the height of the room is 12 feet. You go to the store room to get the wire but find that it can only be supplied in lengths that are an integral multiple of 1 meter. What length of wire do you take back to the lab?

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RRB Other Question
An urn contains three white and four black balls. One of the balls is drawn out of the urn. Find the probability that the ball is white. The mass of the Great Pyramid is 557t greater than that of the Leaning Tower of Pisa. Stone Henge has a mass of 2695t, which is 95t less than the Leaning Tower of Pisa. There once was a Greater Pyramid which had a mass twice that of the Great Pyramid. What was the mass of the Greater Pyramid.