Study Material for SSC CGL, CHSL, MTS, Prasar Bharti, FCI Exams : Average (MCQ)

Average (MCQ)

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?
(a) 82 kg
(b) 85 kg
(c) 76.5 kg
(d) 80 kg

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?
(a) 88%
(b) 78%
(c) 92%
(d) 68%

3. Ages of ‘A’ and ‘B’ are in the ratio of 2 : 3 respectively. Six years hence the ratio of their ages will become 8 : 11 respectively. What is B’s present age?
(a) 18 years
(b) 28 years
(c) 27 years
(d) 25 years 

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?
(a) C is elder than A
(b) 26
(c) 12
(d) 25

5. The average marks fetched by Mohan in History, Geography, Science and Mathematics is 10 more than the marks fetched in Mathematics. If he has got 110 marks aggregate in History and Geography, what will be the aggregate marks fetched in Science and Mathematics?
(a) 90
(b) 70
(c) 75
(d) None of these