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Bangladesh Gas Fields Company Limited (BGFCL)
Post: Assistant Manager
Exam Taker- IBA, DU
MCQ Math Solution
Exam Date: 03-12-2021
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26. If m and n are whole numbers such that mn=121. what is the value of (m-1)n+1
A) 1000 B) 676 C) 121 D) 10 E) None of those
27. If 85% of x = 13% of y, then find the value of x if y=2000.
A) 200 B) 300 C) 400 D) 500 E None of these
28. Which of the following numbers is divisible by 3?
A) 177 B) 200 C) 331 D) 457 E) None of these
29. By selling a book at 600 taka, Salim makes a profit of 25%. What was the cost of the book in taka?
A) 480 B) C) 520 500 D) 540 E) None of the

30. A cement mixture is composed of 3 elements. By weight, 1/3 of the mixture is sand, 3/5 is water and the remaining 12 pounds of the mixture is gravel. What is the weight of the entire mixture in pounds?
A) 60 B) 80 C) 90 D) 180 E) None of these

31. On Dhaka-Sylhet highway, 5% of the drivers are fined for exceeding the speed limit. However 80% of the drivers who exceed the speed limit are not fined. What percentage of drivers on this highway exceed the speed limit?
A) 10 B) 15 C)20 D 25 E) None of these
32 If the average of 5 consecutive integers is 15 then What is the difference between the least and the
greatest of the 5 integers?
A) 4 B) 5 C) 8 D) 10 E) None of these
33. If x = (y + 3)2 then which of the following will be equal to (-2y-6)2?
A) -4x B)-2x C) 4x D) 2x E) None of these

34. A rectangular plot of land has a fence along three of its four sides. The unfenced side and the side
opposite the unfenced side have a length that is three times the length of the other two sides. If the
area of the plot 432 square feet, what is the total length of the fence in feet?
A) 60 B) 72 C) 80 D) 90 E) None of these

35. What is the area, in square feet, of the triangle whose sides have lengths equal to 10, 6 and 8 feet
respectively?
A) 480 B) 24 C) 48 D) 30 E) None of these


36. An examiner checks 4 scripts in 5/3 hours. How many scripts can he check in 50 minutes?
A) 2 B) 3 C) 22/3 D) 25/6 E) None of these
37 On dividing a number try 5, we got 3 as remainder. What will be the remainder when the square of this number is divided by 5?
A) 0 B) 1 C) 2 D) 4 E) None of these
38. Due to a reduction in book's price by 10%. The number of books sold increased by 35%. What was
the percentage increase in revenue?
A) 17 B) 18 C) 19 D) 20 E) None of these
39. For which of the following values of x is (x+78)/x an integer?
A) 9 B) 10 C) 11 D) 13 E) None of these
40. The average of a set of 12 numbers, which includes 34, is A. If 34 is removed from the set and 38 is
included to the set, what is the average of the new set of numbers in terms of A?
A) A+4 B) (A + 38)/12 C) 12 A +4 D) A+ 1/3 E) None of these