Subject Mathematics
1376. If product of two sequential positive odd numbers is 255, what are those numbers?
(a) 11, 13
(b) 13, 15
(c) 13, 17
(d) 15, 17
(e) 15, 19
Ans. d
1377. A third of Karim’s marks in Mathematics exceeds a half of his marks in Social Studies by 30, if Karim got 240 marks in the two subjects together, how many marks did in Social Studies?
(a) 88
(b) 98
(c) 132
(d) 122
(e) 116
Ans.
1378. In a garden, there are 10 rows and 12 columns of mango tree. The distance between two trees is 2 meters and a distance of one meter is left from all sides of the boundary of the garden. What is the length of the garden?
(a) 20 m
(b) 22 m
(c) 24 m
(d) 26 m
(e) 18 m
Ans. a
1379. The rent of a guest house was Tk. 50 per day for first three days Tk. 100 per day for next 5 days and Tk. 300 per day for other days. The registration fee in the beginning is Tk. 50. If one has to pay Tk. 1300, for how many days he availed of this facility?
(a) 10
(b) 12
(c) 15
(d) 8
(e) 9
Ans. a
1380. A motorist travels to a place 150 km away at an average speed of 50 km and returns at 30 km per hour. What is his average speed for the whole journey in km per hour?
(a) 35
(b) 37
(c) 37.5
(d) 40
(e) 42.5
Ans. c
1381. The average of Selim’s marks in 7 subjects is 7.5. His average in subjects excluding Science is 72. How many marks did he get in Science?
(a) 72
(b) 90
(c) 93
(d) 98
(e) 86
Ans. c
1382. In dividing a sum of money, the eldest of three brothers got 2 5 th it and the youngest got Tk. 120. What was the total sum in Tk. If the amount received by the other brother was 1 3 rd of the total?
(a) 98
(b) 100
(c) 108
(d) 110
(e) 200
Ans.
1383. If 3a + 5b = 10 and 5a + 3b = 30, what is the average (arithmetic mean) of a and b?
(a) 4
(b) 2.5
(c) 3.5
(d) 4.5
(e) 3
Ans. b
1384. What is the value of x if 4 x + 3 5 = 10 x ?
(a) 50
(b) 12
(c) 40
(d) 10
(e) 60
Ans. d
1385. The number of marbles in Amin’s collection is 80% of the number in Rahim’s collecting. If Rahim has 80 more marbles than Amin, how many marbles do they have altogether?
(a) 720
(b) 120
(c) 135
(d) 400
(e) 320
Ans. a
1386. The average of Selim’s marks in 7 subjects is 75. His average in six subjects excluding Science is 72. How many marks did he get in Science?
(a) 72
(b) 90
(c) 93
(d) 98
(e) 86
Ans. c
1387. A water reservoir is 1 5 th full and requires 20 liters more to make it 3 5 th full. What is the capacity of the reservoir (in liters)?
(a) 40
(b) 30
(c) 60
(d) 50
(e) 45
Ans. d
1388. For which of the following values of n is 100 + n n not an integer?
(a) 1
(b) 2
(c) 3
(d) 4
(e) 5
Ans. c
1389. Which of the following is the value of 3 0.000064
(a) 0.004
(b) 0.008
(c) 0.02
(d) 0.04
(e) 0.2
Ans. e
1390. Robihas 10 pairs of matched socks. If he loses 7 individual socks, what is the greatest number of pairs of matched socks he can have left?
(a) 7
(b) 6
(c) 5
(d) 4
(e) 3
Ans. b
1391. In a certain population, there are three times as many people aged 21 or under as there are people over 21. The ratio of those 21 or under to the total population is:
(a) 1 to 2
(b) 1 to 3
(c) 1 to 4
(d) 2 to 3
(e) 3 to 4
Ans. e
1392. If the sum of three consecutive integers is odd, then the first and the last integers must be -
(a) odd, even
(b) odd, odd
(c) even, odd
(d) even, even
(e) None of these
Ans. d
1393. “Of 30 applicants for a job, 14 had at least 4 years’ experience, 18 had less than 4 years’ experience and did not have a degree. How many of the applicants had least 4 years’ experience and a degree.
(a) 14
(b) 13
(c) 9
(d) 7
(e) 5
Ans. e
1394. A person makes a profit of 10% on 25% of the quantity and a loss of 20% on the rest. What is the percentage gain or loss on the whole?
(a) 10%
(b) -12.5%
(c) -12%
(d) 25%
(e) None of these
Ans. c
1395. Morshed has d books, which is 3 times as many as Salina and 1 2 as many as Roni. How many books do the three of them have together, in terms of d?
(a) 5 6 d
(b) 7 3 d
(c) 10 3 d
(d) 7 2 d
(e) 9 2 d
Ans. c
1396. Mr. Nazim was planning on depositing a certain amount of money each month into a college fund for his children. He then decided not to make any contributions during June and July. To make the same annual contribution that he had originally planned, by what percent should he increase his monthly deposits?
(a) 16%
(b) 20%
(c) 25%
(d) 33.5%
(e) It cannot be determined from the information given
Ans. e
1397. If the ratio of a circle is increased by 6%, then the area of the circle is increased by-
(a) 36%
(b) 3.6%
(c) 6%
(d) 12.36%
(e) 36%
Ans. d
1398. A person invested 2 3 rd of his capital at 3%, 1 6 that 6% and the remainder at 12%. If his annual income is Tk. 25, then the capital is
(a) Tk. 490
(b) Tk. 510
(c) Tk. 500
(d) Tk. 150
(e) None of these
Ans. c
1399. If x = 2y = 3z and xyz = 36, what is the value of z?
(a) 2
(b) 2
(c) 3
(d) 3
(e) None of these
Ans. a
1400. Layer 1 140 P S Q R 2y x 2y 0 0 0 0
In the figure above, if PQRS is a parallelogram, then y – x = ?
(a) 30
(b) 35
(c) 40
(d) 70
(e) 100
Ans. a