The average weight of 30 students in a class increases by 0.5 kg when the weight of the principal is included. If earlier the average weight of the stud...
If a:b:c = 3:4:6, and (5a + 3c) = 132, then find the value of '3b'.
Average weight of 36 students is 68 kg. When two new students with weights (m + 12) kg and (m - 6) kg join, the average weight becomes 69 kg. Find the v...
Rohit Sharma's strike rate is initially 125 after facing a certain number of balls. Over the next 14 balls, he scores an addition...
If the average of 7 back-to-back numbers is 65, find the sum of the first and last numbers.
The average age of a group of 10 students is 30 years. Two persons of age 25 years and 30 years, left the group and 2 persons of age 54 years and...
The average of two numbers ‘K’ and ‘L’ is 480 such that they are in the ratio 3:5 respectively. Another number ‘M’ is 120 more than ‘L’ ...
Average age of company A is 25 years and average age of both companies A and B is 17 years. If the ratio of number of employees in company A and B is 3:...
While tabulation of marks scored in an examination by the students of a class, by mistake the marks scored by one student got recorded as 93 in place o...
A player’s average score in first 10 games was a certain number. In the next 10 games, his average score was 90, due to which his overall average incr...
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