CHSL 21 24-05-2022 Shift 1


Question 1

15 boys and a certain number of girls appeared for a test. The average score of the boys was 26; the average score of the girls was 36, while the combined average score was 30. How many girls appeared for the test?
एक परीक्षा के लिए 15 लड़के और कुछ लड़कियां उपस्थित हुईं। लड़कों का औसत स्कोर 26 था; लड़कियों का औसत स्कोर 36 था, जबकि संयुक्त औसत स्कोर 30 था। परीक्षा में कितनी लड़कियां शामिल हुईं?

Options

A

 8

 8

B

 12

 12

C

 10

 10

D

 9

 9


Solution:

Correct Answer:

C

 10

 10


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