Problem 5: The average weight of 5 men is increased by 1 kg, when one of them whose weight is 60 kgs, is replaced by a new man. What is the weight of the new man?
Problem 5: The average weight of 5 men is increased by 1 kg, when one of them whose weight is 60 kgs, is replaced by a new man. What is the weight of the new man?
a) 64 kgs b) 65 kgs c) 50 kgs 55 kgs
Solution:
Let there be 5 men whose weights are m1, m2, m3, m4 and 60. Let their average weight be ‘x’;
Now let the man weighing 60 kg is replaced by a man whose weight is ‘M’. As per condition average weight now becomes x+1;
Put value of m1+m2+m3+m4 from eq(1);
So, the weight of new man is 65 kg
(math test for jobs)
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