1) 17320
The average marks of 65 students in a class were calculated as 150. It was later realized that the marks of one of the students were calculated as 142, whereas his actual marks were 152 .What is the actual average marks of the group of 65 students?(Rounded off to two digits after decimal) 1) 151.25 2) 150.15 3) 151.10 4) 150.19
David buys 500 pens at Rs.6 each. He sells 400 of them at Rs. 8 each and the rest at Rs. 30 each. Find his average profit per pen sold? 1) 2.4 2) 6.4 3) 6 4) 19
The average marks in Science subject of a class of 20 students is 68. If the marks of two students were misread as 48 and 65 instead of the actual marks 72 and 61 respectively, what would be the correct average? 1) 67 2) 68 3) 69 4) 70
The ratio of the speeds of a Bike, Car and Bus is 594. The average speed of the Bike, the Car and the Bus is 72 kmph together. What is the average speed of the bike and the Car together? 1) 84 2) 78 3) can't be determined 4) 64
The ratio of the speeds of a Car, Jeep and Tractor is 352. The speed of the jeep is 250% the speed of the tractor, which covers 360 km in 12 hours. What is the Average speed of Car and Jeep together? 1) 60 2) 70 3) 120 4) 66
If u, v, w, x and y are five consecutive odd numbers, then find the average? 1) (u+v+w+x+y)/5 2) u+4 3) 5uvwxy 4) None of these
The total marks obtained by a student in English, G.K. and Science together are 120 more than the marks obtained by him in G.K. .What is the average marks obtained by him in English and Science together? 1) 61 2) 51 3) can't be determined 4) 60
A motorist travels a distance of 60 km at the rate of 10 kmph,120 km at the rate of 60 kmph and 80 km at the rate of 40 kmph. What is the average speed for the whole journey? 1) 28 2) 32 3) 26 4) 20
Find the mean of y, y+4, y+8 and y+16. 1) (4y+7) 2) (4y+28) 3) (y+7) 4) (y+7)
The average age of 'x' men and 'y' women is 'a' years. If the average age of the men is 'd' years. Find the average age of women? 1) a + ( x(a-d) )/y 2) a - (xa +d)/y 3) a+ x(d-a)/y 4) None of these
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