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Home » GAT Subject » Mathematics » Aptitude Test - 6
1.Nine men went to a hotel. Eight of them spent Rs.3 each over their meals and the ninth spent Rs.2 more than the average expenditure of all the nine. Determine the total money spent by them?
A. Rs.29.25
B. Rs.30.25
C. Rs.32
D. Rs.29.25
2.The average age 9 members of a committee are the same as it was 2 years ago, because an old number has been replaced by a younger number. Find how much younger is the new member than the old number?
A. 7 years
B. 11 years
C. 18 years
D. 7 years
3.The average temperature for Monday, Tuesday, Wednesday and Thursday was 48 degrees and for Tuesday, Wednesday, Thursday and Friday was 46 degrees. If the temperature on Monday was 42 degrees. Find the temperature on Friday?
A. 40 degrees
B. 38 degrees
C. 36 degrees
D. 40 degrees
4.A man purchased 3 blankets @ Rs.100 each, 5 blankets @ Rs.150 each and two blankets at a certain rate which is now slipped off from his memory. But he remembers that the average price of the blankets was Rs.150. Find the unknown rate of two blankets?
A. Rs.150
B. Rs.225
C. Rs.250
D. Rs.150
5.A building contractor employs 20 male, 15 female and 5 child workers. To a male worker he pays Rs.25 per day, to a female worker Rs.20 per day and a child worker Rs.8 per day. The average wage per day paid by the contractor is_____?
A. Rs.20
B. Rs.21
C. Rs.22
D. Rs.20
6.Visitors to show were charged Rs.15 each on the first day. Rs.7.50 on the second day, Rs.2.50 on the third day and total attendance on the three days were in ratio 2:5:13 respectively. The average charge per person for the whole show is_____?
A. Rs.3
B. Rs.4.50
C. Rs.5.00
D. Rs.3
7.In a hostel there were 100 students. To accommodate 20 more students the average is decreased by rupees 5. But total expenditure increased by Rs.400. Find the total expenditure of the hostel now?
A. Rs.5000
B. Rs.4600
C. Rs.5400
D. Rs.5000
8.A batsman in his 17th innings makes a score of 85 and their by increasing his average by 3. What is his average after the 17th innings?
A. 34
B. 35
C. 36
D. 34
9.The average age of a husband and a wife is 23 years when they were married five years ago but now the average age of the husband, wife and child is 20 years(the child was born during the interval). What is the present age of the child?
A. 1 year
B. 2 years
C. 3 years
D. 1 year
10.The average age of M boys is ‘b’ years and of ‘n’ girls ‘c’ years. The average age of all together is__?
A. (mb – nc)/ (m + n) years
B. (mb + nc)/ (m – n) years
C. (mb + nc)/ (m + n) years
D. (mb – nc)/ (m + n) years
11.A team of eight entered for a shooting competition. The best marks man scored 85 points. If he had scored 92 points, the average scores for. The team would have been 84. How many points altogether did the team score?
A. 625
B. 665
C. 632
D. 625
12.The average salary of workers in an industry is Rs.200 the average salary of technicians being Rs.400 and that of non-technicians being Rs.125. What is the total number of workers?
A. 250
B. 275
C. 550
D. 250
13.The average age of 8 men increases by 2 years when two women are included in place of two men of ages 20 and 24 years. Find the average age of the women?
A. 36 years
B. 24 years
C. 30 years
D. 36 years
14.The average of first five prime numbers greater than 20 is___?
A. 31
B. 31.01
C. 32
D. 31
15.The average of 9 observations was 9, that of the 1st of 5 being 10 and that of the last 5 being 8. What was the 5th observation?
A. 9
B. 8
C. 7
D. 9
16.The average of 1st 3 of 4 numbers is 16 and of the last 3 are 15. If the sum of the first and the last number is 13. What is the last numbers?
A. 8
B. 6
C. 5
D. 8
17.The average age of three boys is 15 years and their ages are in proportion 3:5:7. What is the age in years of the youngest boy?
A. 15
B. 9
C. 18
D. 15
18.The average of first 10 odd numbers is___?
A. 11
B. 10
C. 12
D. 11
19.The average of first 10 natural numbers is___?
A. 5
B. 5.5
C. 6.5
D. 5
20.The average of first ten prime numbers which are odd is___?
A. 12.9
B. 13.8
C. 15.8
D. 12.9
21.The average of 11 numbers is 10.9. If the average of first six is 10.5 and that of the last six is 11.4 the sixth number is____?
A. 11
B. 11.3
C. 11.4
D. 11
22.The average of first 10 even numbers is___?
A. 18
B. 22
C. 9
D. 18
23.Hafeez invested Rs. 15000 @ 10% per annum for one year. If the interest is compounded half-yearly, then the amount received by Hafeez at the end of the year will be?
A. Rs. 16,500
B. Rs. 16,525.50
C. Rs. 16,537.50
D. Rs. 16,500
24.A man saves Rs. 200 at the end of each year and lends the money at 5% compound interest. How much will it become at the end of 3 years?
A. Rs. 565.25
B. Rs. 635
C. Rs. 662.02
D. Rs. 565.25
25.What will be the compound interest on a sum of Rs. 25,000 after 3 years at the rate of 12% p.a.?
A. Rs. 9000.30
B. Rs. 9720
C. Rs. 10123.20
D. Rs. 9000.30
26.Shohaib invested Rs. 8000 in a scheme for 2 years at compound interest rate 5% p.How much amount will Shohaib get on maturity of the fixed deposit?
A. Rs. 8600
B. Rs. 8620
C. Rs. 8800
D. Rs. 8600
27.Afnan wants to borrow Rs.6000 at rate of interest 6% p.at S.I and lend the same amount at C.I at same rate of interest for two years. What would be his income in the above transaction?
A. Rs.21.60
B. Rs.24.00
C. Rs.25.20
D. Rs.21.60
28.Rayan invested certain amount for two rates of simple interests at 6% p.and 7% p.What is the ratio of Rayan’s investments if the interests from those investments are equal?
A. 4:03
B. 3:02
C. 6:05
D. 4:03
29.The simple interest on Rs.12000 at a certain rate of interest in five years is Rs.7200. Find the compound interest on the same amount for five years at the same rate of interest.
A. Rs.3502.80
B. Rs.3052.40
C. Rs.3054.8
D. Rs.3502.80
30.What is the difference between the compound interest on Rs.12000 at 20% p.for one year when compounded yearly and half yearly?
A. Rs.140
B. Rs.120
C. Rs.130
D. Rs.140
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