The average weight of boys in a class is 30 kg and the average weight of girls in the same class is 20 kg. If the averag…

A car owner buys petrol at Rs.7.50, Rs. 8 and Rs. 8.50 per litre for three successive years. What approximately is the a…

The sum of the three consecutive even numbers is 44 more than the average of these numbers. Which of the following is th…

A batsman in his 12<sup>th</sup> innings makes a score of 63 runs and there by increases his average score b…

Students of three different classes appeared in common examination. Pass average of 10 students of first class was 70%, …

The average marks of four subjects is 120. If 33 was misread as 13 during the calculation, what will be the correct aver…

A school has only four classes that contain 10, 20, 30 and 40 students respectively. The pass percentage of these classe…

There are five boxes in a cargo hold. The weight of the first box is 200 kg and the weight of the second box is 20% more…