Subject Mathematics
176. 30% of 10 is 10% of which ?
(a) 40
(b) 60
(c) 30
(d) 600
Ans. c
177. Rahim is 12 years old. He is three times older than Karim. What will be the age of Rahim when he is two times older than Karim ?
(a) 15
(b) 16
(c) 17
(d) 18
Ans. b
178. If you count 1 to 100, how many 5s will you pass on the way?
(a) 10
(b) 11
(c) 18
(d) 20
Ans. d
179. Divide 30 by half and 10. What do you get ?
(a) 25
(b) 45
(c) 55
(d) 70
Ans. d
180. If a man swims 4 miters upstream at 1 mph and back downstream to the same point at 4 mph, what is his average speed ?
(a) 0.8 mph
(b) 1.6 mph
(c) 2.4 mph
(d) 3.2 mph
Ans. b
181. A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:
(a) 20 days
(b) 22.5 days
(c) 25 days
(d) 30 days
(e) 15 days
Ans. b
182. Riaz spent 20% of his income on taxes and 20% of the remainder on rent. What percent of his income he spent on rent?
(a) 12
(b) 14
(c) 16
(d) 18
(e) 15
Ans. c
183. What is the slope of the line that contains the points (1,3) and (4, -3)?
(a) -2
(b) -0.5
(c) 1
(d) 2
(e) 3
Ans. a
184. The price of corn rose 20% two years ago and 15% last year. What is the combined percent increase in price?
(a) 5%
(b) 17.5%
(c) 25%
(d) 35%
(e) 38%
Ans. e
185. The organizers of a fair projected 25% increase of visitors this year over that of the last year but the actual turnover was 20% less than of the last year. What percent of projected visitors attended the fair?
(a) 25%
(b) 45%
(c) 55%
(d) 64%
(e) 67%
Ans. d
186. 75% of students of a class answered Question No. 1 correct and 55% answered Question No. 2 correct and 20% answered neither question correctly. What percent of student answered both question correctly?
(a) 20%
(b) 25%
(c) 35%
(d) 45%
(e) 50%
Ans. e
187. The taxicab charges Tk. 4.60 for the first 0.2 miles of a trip and Tk. 1.20 for each 0.2 of a mile or a part there of. If the trip 2.5 miles one way and the waiting charge is Tk. 7.50 for 30 minutes or part thereof. What will be the fare for a round trip if the passenger waited for 70 minutes?
(a) 50
(b) 55
(c) 60
(d) 6.50
(e) 75
Ans. b
188. How many squares are there in a chess board if each player has got 16 pawns to play with?
(a) 64
(b) 128
(c) 204
(d) 256
(e) 552
Ans. d
189. Two planes leave the airport at the same time. Minutes later, plane A is 33 miles due north of the airport and plane B is 56 miles due east of the airport. How far apart are the two planes?
(a) 82
(b) 119
(c) 65
(d) 93
(e) 66
Ans. c
190. Which of the following terms does NOT describe the number 9?
(a) Prime
(b) Integer
(c) Real Number
(d) Whole number
(e) Rational number
Ans. a
191. A circular pool is filling with water. Assuming the water level will be 4ft deep and the diameter is 20 ft, what is the approximate volume of the water needed to fill the pool?
(a) 251.2 cubic feet
(b) 1,256 cubic feet
(c) 5,024 cubic feet
(d) 3,140 cubic feet
(e) 4,410 cubic feet
Ans. d
192. How many degrees does a minute hand move in 20 minutes?
(a) 20 degree
(b) 120 degree
(c) 60 degree
(d) 100 degree
(e) 90 degree
Ans. b
193. 150 + 150 = ?
(a) 45
(b) 20
(c) 25
(d) 600
(e) 300
Ans. c
194. 23. If the length and width of a rectangular garden plot were each increased by 20%, what would be the percent increase in the area of the plot?
(a) 20%
(b) 24%
(c) 36%
(d) 40%
(e) 44%
Ans. e
195. If x>0, y x and then what is the value of y in term of x?
(a) 1 x
(b) x
(c) x x
(d) x² x
(e) x 3
Ans. e
196. If x = -1, then x 4 – x 3 + x² x-1 = ?
(a) -3 2
(b) -1 2
(c) 0
(d) 1 2
(e) 3 2
Ans. a
197. In how many ways can the letters of the word, ‘ARRANGE’ be in which the two Rs and two As come together?
(a) 360
(b) 120
(c) 95
(d) 75
(e) 150
Ans. b
198. In the two consecutive numbers, one-fourth of the smaller one exceeds one-fifth of the larger one by 3. The numbers are:
(a) 36,37
(b) 13,12
(c) 64,65
(d) 24,25
(e) 75,76
Ans. c
199. By selling a book for Tk. 560, gain is as much percent as it cost taka. The cost price is:
(a) Tk. 400
(b) Tk. 40
(c) Tk. 360
(d) Tk. 140
(e) Tk. 500
Ans.
200. A researcher computed the mean, median and standard deviation for a set of performance score. If 5 were to be added to each score, which of these three statistics would change?
(a) The mean only
(b) The median only
(c) The standard deviation only
(d) The mean and median only
(e) The mean and the standard deviation only
Ans. a