Select the correct answerThe average weight of a group of 50 girls was calculated as 58 kg. It was later discovered that the weight of one of the girls was read as 45 kg, whereas her actual weight was 65 kg. What is the actual average weight of the group of the 50 girls?Options58.657.4None of these58.457.6

Select the correct answerThere are 40 students in a class whose average weight is 56. 25kg.Among these 40 students 25 are boys and 15 are girls. The average weight of 25 boys is 6.8 kg more than the average weight of 15 girls. What is the average weight of 15 girls?Options5255465879

The average mass of a group of girls is 45 kg. After Sally who weighs 63 kg joins the group, the average mass becomes 48 kg. How many girls are there in the group including Sally?

The average weight of a group of 20 boys and calculated to be 89.4 kg and it was later discovered that one weight was misread as 78 kg instead of 87 kg. The correct average weight is?

The average weight of 5 girls is 50 kg. If a boy enters their group, the average increases by 5 kg. What is the weight of the boy?

In a primary school the average weight of male students is 65.9 kgs and the average weight of female students is 57 kg.If the average weight of all the students is 60.3kg and the number of male students in the school is 66.What is the number of female students in the school?11411266None of these