Q. The speed of sound waves is 300 m/ s. At a place a person hears the sound produced after 5 seconds while another hears the same sound after 6 seconds. The maximum and minimum distances between the two persons are -
1) 1.8 km, 0.15 km
2) 2.2 km, 0.20 km
3) 2.8 km, 0.25 km
4) 3.3 km, 0.3 km
Q. In a city, there were 40 accidents, 50 accidents and 60 accidents in a time period involving motorcycles, cars and trucks respectively. This data is represented by Pie diagram. What is the central angle of the part representing accidents by by cars?
1) 150°
2) 120°
3) 100°
4) 50°
Q. Mush, Kush and Bush each took part in two tests in some examination. Mush got 24 marks out of 60 in the first test and 32 out of 40 in the second test. Kush got 35 marks out of 70 and 54 out of 60 in the two tests. Bush got 27 out of 90 and 45 out of 50 in the two tests. Who got the maximum marks?
1) Mush
2) Kush
3) Bush
4) Mush and Bush both
Q. Median of 15 numbers is 38. A number 17 is replaced by 33. The median -
1) Will increase by 16
2) Will increase by 8
3) Will increase by 1
4) Will remain the same
Q. Kishna sells an article to Kamal at a profit of 25%. Kamal sells it to Kamlesh at a profit of 10% and Kamlesh sells it for Rs. 231 to Karunesh to get a gain of 5% What is the cost price at which Kishan bought the article?
1) Rs. 180
2) Rs. 160
3) Rs. 140
4) Rs. 120
Q. If the heights of two cones are in the ration of 1 : 3 and their diameters are in the ratio 3 : 5, the ratio of their volumes will be -
1) 3 : 25
2) 9 : 16
3) 8 : 25
4) 9 : 25
Q. How many times in a day the hands of a clock one straight, pointing opposite each other?
1) 20
2) 12
3) 24
4) 22
Q. A man goes from a place A to another place B. He covers half a distance at a speed of 50 km/h and other half at a speed of 70 km/h. His average speed for the whole journey is -
1) 56 km/h
2) 54 km/h
3) 60 km/h
4) None of these
Q. If A earns 25% more than B, then B earns x% less than A. The value of x is -
1) 25
2) 20
3) 15
4) 10
Q. If 123 stands for 987 and 426 for 684, then 234 stands for -
1) 785
2) 586
3) 768
4) 876
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