Civil Services Haryana PSC HCS Mock Test 2024 Quantitative Aptitude Average

A group of boys has an average weight of 42 kg. One boy weighing 48 kg leaves the group and another boy weighing 38 kg joins the group. If the average now becomes 41 kg, then how many boys are there in the group?

1
6
2
10
3
8
4
12
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