TCS Company Numerical Ability Averages

The average age of three boys is 15 years. If their ages are in the ratio 3:5:7 the average age of the young boy is ______ years?

-18
-9
-9
-18

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TCS Other Question

Doreen was so furious that she almost stopped playing the piano because the teacher insisted that she ______ her scales.

- to practice
- practice
- practicing
- practiced
If 10 lions can kill 10 deers in 10 minutes how long will it take 100 lions to kill 100 deers
(a) 1 minutes (b) 10 minute (c) 100 minutes (d) 10000 minutes