In sujapuram ups there are 15 students in std 6.physical education teacher divided them into 3 equal groups. average weight of members in 1st group is 28 kg 2nd group is 26 kg and group 3rd is 30kg. how many members are in each group? find tge total weight of student in each group? oneَ more student joined the 3rd group there was no change in averade wieght of group. find the wieght of new student?
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Answer:
Here we will learn to solve the three important types of word problems based on average. The questions are mainly based on average or mean, weighted average and average speed.
How to solve average word problems?
To solve various problems we need to follow the uses of the formula for calculating arithmetic mean.
Average = (Sums of the observations)/(Number of observations)
Worked-out problems based on average:
1. The mean weight of a group of seven boys is 56 kg. The individual weights (in kg) of six of them are 52, 57, 55, 60, 59 and 55. Find the weight of the seventh boy.
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members in each group= 5
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