Subject Mathematics
801. Which of the following equations is not equivalent to 25 x 2 = y 2 - 4
(a) 25 x 2 + 4 = y 2
(b) 75 x 2
(c) 25 x 2 =(y + 2)( y - 2)
(d) 5x = y -2
(e) None of these
Ans. d
802. If 5 students run a mile in 5 minutes, how much time will 50 students take to nun mile?
(a) 0.1 minute
(b) 5 minutes
(c) 10 minutes
(d) 250 minutes
(e) None of them
Ans. b
803. In redesigning a cold storage, the length is increased by 30%, the breadth is increased by 50%, and the height is reduced by 20%. What is the net increase in the volume of the redesigned cold storage compared to the previous design?
(a) 50%
(b) 56%
(c) 60%
(d) 40%
(e) None of them
Ans. b
804. A box contains 24 balls, some are red and some are black. Each of the following could be the ratio between the red and black balls except
(a) 1:1
(b) 3:1
(c) 5: 3
(d) 4:3
(e) None of them
Ans. d
805. A pen was sold at 15% loss. If the selling price was Tk. 8 more, then the seller could have made a profit of 10%. What was the purchase price of pen?
(a) 45
(b) 32
(c) 36
(d) 30
(e) None of them
Ans. b
806. Find the average of all whole numbers between 1 and 100 that end in 3.
(a) 44
(b) 45
(c) 46
(d) 47
(e) None of Them
Ans. e
807. Mr. Karim deposited Tk. 800 in a Bank at 15% annual compound interest rate. At the end of the second year, the total amount including the interest will be:
(a) 850
(b) 900
(c) 1025
(d) 1058
(e) None of them
Ans. d
808. Out of total profit, A gets 40%, B 25%, C 20%, D3 1% and E 25%. What percentage of B’s profit is that of A?
(a) 150%
(b) 160%
(c) 400%
(d) 200%
(e) None of them
Ans. b
809. A car wash centre washes 10 cars in half an hour. At this rate how many cars can it wash in 4 hours?
(a) 60
(b) 20
(c) 96
(d) 80
(e) None of them
Ans. d
810. If x² + 4x + 13 = 1 + x², then find out the value of x²?
(a) 9
(b) 0
(c) 4
(d) 7
(e) None of Them
Ans. a
811. B and C are points on a straight line AD, where AB = BC = CD. What percent of AC is AD?
(a) 150%'
(b) 1.5%
(c) 66.7%
(d) 1333.3%
(e) None of Them
Ans. c
812. The sum of 6 consecutive odd integers exceeds twice the biggest integer by 38. Find sum of the six numbers?
(a) 42
(b) 72
(c) 50
(d) 60
(e) None of Them
Ans. b
813. If the following series continues to follow the same pattern, what will be the next number: 2, 6, 3, 9, 6 .... ?
(a) 3
(b) 6
(c) 18
(d) 14
(e) None of Them
Ans. c
814. What percent of 25 is 0.20?
(a) 8
(b) 80
(c) 0.8
(d) 0.08
(e) None of Them
Ans. c
815. What is the number of integers between 101 and 199 which exactly divisible by 5 or 7?
(a) 31
(b) 30
(c) 32
(d) 35
(e) None of them
Ans. b
816. X is 4 6 of Y and Y is 6 8 of z. What is the ratio 51 Z=X?
(a) 1 : 1
(b) 4 : 3
(c) 2 : 1
(d) 1 : 2
(e) None of them
Ans. c
817. Taxi fare is charged at Tk. 15 per mile plus Tk. 150 for a trip. If the total fare by taxi is Tk. 600, then what is the distance covered in miles by the trip?
(a) 30
(b) 32
(c) 20
(d) 25
(e) None of them
Ans. a
818. A picnic was attended by 240 persons. There were 20 more men than women and 20 more adults than children. How, many men were there in the picnic? 0
(a) 240
(b) 75
(c) 110
(d) 130
(e) None of them
Ans. d
819. If n is any integer, which of the following is always an odd integer?
(a) N-1
(b) N + l
(c) 2n + 1
(d) 2n + 2
(e) None of them
Ans. c
820. Which of the following fractions is the smallest?
(a) 33 128
(b) 45 138
(c) 53 216
(d) 83 324৬
(e) None of them
Ans. c
821. You can now buy 5 more Mangoes with Tk. 75 due to reduction in price by 20 percent. Calculate the current price of one dozen of Mangoes.
(a) 24
(b) 30
(c) 36
(d) 32
(e) None of them
Ans. c
822. If x + y = 6, y + z = 4 and z + x = 2, then 2y – z - x?
(a) 0
(b) 2
(c) 8
(d) None of them
(e) None of them
Ans. d
823. If 4 is subtracted from one-fourth of a number, the result is 20. The number is
(a) 84
(b) 92
(c) 110
(d) 96
(e) None of them
Ans. d
824. An instrument store gives a 10% discount to all students off the original cost of an instrument. During a school sale, an additional 15% is taken off the discounted price. Rahim, a student' at the local high school, purchases a flute for Tk. 306. What was its original cost before discount?
(a) Tk. 400
(b) Tk. 408
(c) Tk. 375
(d) Tk. 425
(e) None of these
Ans. a
825. If two planes leave the same airport at 1:00 p.m., how many miles apart will they be at 3:00 p.m. if one travels directly towards north at 150 miles per hour and the other travels directly towards west at 200 miles per hour?
(a) 50 miles
(b) 100 miles
(c) 400 miles
(d) 500 miles
(e) None of these
Ans. d