CAT Exam Numerical Ability Age Problem

The average weight of 21 boys was
recorded as 64 kgs. If the weight of
the teacher was added, the average
increased by one kg. What was the
teachers’ weight?

Read Solution (Total 1)

Ans=86 Years
Total age of boys=21*64=1344 & if the teacher's age=x
then 1344+x/22=65 or x=1430-1344=86
11 years agoHelpfull: Yes(0) No(0)

CAT Other Question

3 women and 18 children together take 2 days to complete a piece of work. How many will 9 children alone take to complete the piece of work alone can complete the piece of work in 3 days? At present Anil is 1.5 times Purvi’s age. Eight years hence, the respective ratio between Anil and Purvi’s ages then will be 25 : 18. What is Purvi’s present age?