CPO 22: Date: 10/11/2022, Shift 3


Question 1


The average age of 25 girls in a class is 11.2 years and that of the remaining 15 girls is 10 years. Find the average age of all the girls in the class.

एक कक्षा में 25 लड़कियों की औसत आयु 11.2 वर्ष है और शेष 15 लड़कियों की औसत आयु 10 वर्ष है। कक्षा में सभी लड़कियों की औसत आयु ज्ञात कीजिए।

Options

A

11.35 years

11.35 years

B

10.75 years

10.75 years

C

10.45 years

10.45 years

D

11.05 years

11.05 years


Solution:

Correct Answer:

B

10.75 years

10.75 वर्ष


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