Teaching KVS Junior Secretariat Assistant (LDC) Mock Test 2022 Quantitative Aptitude Average

The average weight of 20 girls in a school was 52 kg. Two new students of weights 54 kg and 50 kg were admitted. The ratio of this new average to the old one is:

1
21 : 22
2
1 : 1
3
24 : 25
4
14 : 13
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