Test Preparation on Math Test Preparation Problems on Average Part 1
1.
The average weight of 8 persons increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person?
2.
Sumitra has an average of 56% on her first 7 examinations. How much she should make on her eighth examination to obtain an average of 60% on 8 examinations?
3.
Ages of aEUR~AaEURtm and aEUR~BaEURtm are in the ratio of 2 : 3 respectively. Six years hence the ratio of their ages will become 8 : 11 respectively. What is BaEURtms present age?
4.
The total age of A and B is 12 years more than that of total age of B and C. C is how many years younger than A?
