Q.19 A boat running downstream covers a distance of 18 kilometres in 2 hours. The same boat running upstream covers it in 4 hours. The speed (in kilometres per hour) of the boat in still water isAns 1. ...
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Q.6 An inlet pipe can fill a tank in 20 hours. An outlet pipe can drain the tank in 30 hours. If a system of ānā pipes (fill pipes and drain pipes combined) can fill the tank in ...
Q.3 The ratio of the area of a rectangle and the square of its perimeter is 1 : 25. What is the ratio of the lengths of the shorter and longer sides of the rectangle?Ans 1. 1:32. 2:93. ...
Q.16 The frequency of a yellow flicker torch is set at four times per minute and a red flicker torch is set at five times in two minutes. If both torches start flickering at the same time, the ...
Q.2Ans 1. 122. 133. 114. 9Correct Ans Provided: 2
Q.15Ans 1.2.3.4.Correct Ans Provided: 1
Q.7 EFGH is a square whose perimeter is 50% more than that of another square ABCD. The area of EFGH isAns 1. 25% more than that of ABCD.2. 125% more than that of ABCD.3. 2500% more than that ...
Q.14 The area of the base of a cylindrical water tank is 6.25 square metres. If the tank is filled at the rate of 100 cubic centimetres per second, then the time it takes to fill the tank ...
Q.5 Aarav wrote exams for 10 subjects. 6 of these subjects had a maximum of 100 marks each and were from department A. The remaining subjects were from department B with a maximum of 200 marks each. If ...
Q.4 A village has 80 percent literacy rate. The ratio of adult to child population in this village is 3:2. If the literacy rate among children is 95 percent, what is the adult literacy rate?Ans 1. 75 percent2. ...
