The average salary of all the workers in a workshop is Rs. 8,000. The average salary of 7 technicians is Rs. 12,000 and …

The average weight of A, B and C is 40 kgs. Weight of C is 24 kgs more than A’s weight and 3 kgs less than B&rsquo…

Visitor to a show were charged Rs. 15 each on the first day, Rs. 7.50 each on the second day and Rs. 2.50 each on the th…

If the average of 6 consecutive even number is 25, the difference between the largest and the smallest number is :

The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the…

The marks of six boys in a group are 48, 59, 87, 37, 78 and 57. What are the average marks of all six boys?

The average of marks in Mathematics for 5 students was found to do 50. Later, it was discovered that in the case of one …

Average of a, b, and c is 11; average of c, d and e is 17; average of e and f is 22 and average of e and c is 17. Find o…