Averages in Aptitude MCQ Quiz (Multiple Choice Questions And Answers)
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56. Five years ago the average of the ages of A and B was 40 years and now the average of the ages of B and C is 48 years. What will be the age of the B ten years hence?
- Data inadequate
- 58 years
- 55 years
- 55 years
57. The total marks obtained by a student in Mathematics and Physics is 60 and his score in Chemistry is 20 marks more than that in Physics. Find the average marks scored in Mathamatics and Chemistry together.
- 40
- 30
- 20
- 10
58. The average weight of a group of persons increased from 48 kg to 51 kg, when two persons weighing 78 kg and 93 kg join the group. Find the initial number of members in the group?
- 23
- 46
- 25
- 30
59. A trader purchased two colour televisions for a total of Rs. 35000. He sold one colour television at 30% profit and the other 40% profit. Find the difference in the cost prices of the two televisions if he made an overall profit of 32%?
- Rs. 21000
- Rs. 4200.
- Rs. 4000
- Rs. 2200
60. Rs. 6000 is lent out in two parts. One part is lent at 7% p.a simple interest and the other is lent at 10% p.a simple interest. The total interest at the end of one year was Rs. 450. Find the ratio of the amounts lent at the lower rate and higher rate of interest?
- ratio 5 : 1
- ration 1:5
- ratio 2:3
- ratio 3:2
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