The average monthly salary of 660 workers in a factory is Rs. 380. The average monthly salary of officers is Rs. 2100 an…

In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the run rate in the remaining 40 over…

The mean monthly salary paid to 75 workers in a factory is Rs. 5680. The mean salary of 25 of them is Rs. 5400 and that …

The average age of the boys in a class is 16 years and that of the girls is 15 years. The average age for the whole clas…

In the afternoon, a student read 100 pages at the rate of 60 pages per hour. In the evening, when she was tired, she rea…

The difference between two angles of a triangle is 24°. The average of the same two angles is 54°. Which one of …

A batsman makes a score of 270 runs in the 87<sup>th</sup> inning and thus increase his average by a certain…

A man had 7 children. When their average age was 12 years, a child aged 6 years died. Then average age of remaining six …