New RBI Grade B 2025 Notification will come Soon! Enroll Here

Question

The average age of a class of 25 girls is 20 years. If 7

new girls having average age of 12 years join the class, then the average age of the class becomes:

A 18.25 years

B 13.6 years

C 16.5 years

D 19 years

Practice Next

More Average Questions

The average of 14, 57, and z is 40. What is the value of z?
In a school, there are 30 male students and 20 female students. The average marks of male students is 58 and that of female students is 62. Calculate th...
Each side of a rhombus is 20cm long and the length of one of its diagonals is 24cm, then find the area of the rhombus.
Average run scored by a batsman in 14 innings is 80. In next 6 innings, he scored runs with an average of ‘x’ so that his overall average increases ...
Average of 8 numbers is 50. If average of first four and last two numbers is 40 and 35, respectively then find the fifth number given that ratio of fift...
A bowler gives 16.2 runs per wicket. He gives 32 runs and takes 8 wickets in a last match after which his average becomes 15.4 runs per wicket. How many...
When the average age of a husband and wife and their son was 44 years, the son got married and a child was born just one year after their marriage. When...
Average of first 2 numbers is twice the average of next 4 numbers. If the average of all 6 numbers is 18, find the sum of the last 4 numbers.
The average of n numbers is 66. If each of 54% of the numbers is increased by 13 and each of the remaining numbers is decreased by 12, then the n...
Three varieties of pulses priced at Rs. 28/kg, Rs. 32/kg, and Rs. ‘x’/kg are mixed in the ratio 4:3:5. If the final mixture is worth Rs. 33 per kg, the...

Relevant for Exams:

Coal India Management Trainee

Coal India MT Legal