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Subject Mathematics
1526. - = ?
(a) 10
(b)
(c)
(d) 9 ×
Ans. d
1527. A 6 meter long pole casts 15 meter long shadow. Find the length of second pole if its shadow is 25 meter.
(a) 10 meter
(b) 12.5 meter
(c) 25 meter
(d) 62.5 meter
Ans. a
1528. On subtracting 5 from one-fifth of a number, the result is 10. What is the number?
(a) 15
(b) 25
(c) 50
(d) 75
Ans. d
1529. A number when multiplied by 21 is increased by 420. Find the number.
(a) 19
(b) 20
(c) 21
(d) 22
Ans. c
1530. Find the sum of first 50 terms in the series: 5 + 3 – 7 + 5 + 3 – 7 ………………
(a) 1
(b) 8
(c) 24
(d) 40
Ans. c
1531. Product of two numbers is 162. If the greater number is 2 times the smaller number, what is the greater number?
(a) 9
(b) 15
(c) 18
(d) 21
Ans. c
1532. According to the figure, traveling directly from point A to point B, rather than point A to point C and then from point C to point B, would be save how many miles?
(a) 4
(b) 5
(c) 7
(d) 13
Ans. a
1533. √27 + √75 = ?
(a) 8
(b) 8√3
(c) 16
(d) 16√3
Ans. b
1534. A man’s expenditure on food is of the expenditure on clothes, find the ratio between his expenditure on food and cloth.
(a) 2 : 5
(b) 3 : 5
(c) 2 : 3
(d) 5 : 3
Ans. b
1535. 2700 chocolates were distributed among the students of a class. If each student got 3 times as many chocolates as many number of students in the class, find the number of students in the class.30
(a) 45
(b) 60
(c) 90
(d) 30
Ans. d
1536. If = = , then A : B : C = ?
(a) 2 : 3 : 4
(b) 3 : 4 : 5
(c) 4 : 3 : 2
(d) 6 : 4 : 3
Ans. a
1537. The ages of A and B are in the ratio of 8 : 5. If the sum of their ages in 39 years, what will be the ratio of their ages after 9 years?
(a) 3 : 2
(b) 8 : 7
(c) 10 : 7
(d) 11 : 8
Ans. d
1538. If rate of income tax is increased from 20% to 25%, find the additional amount of tax a person has to pay, if his total income is Tk. 40,000.
(a) Tk. 2000
(b) Tk. 2500
(c) Tk. 8000
(d) Tk. 10000
Ans. a
1539. In an examination, a student has to score 40% marks to pass. One student got 40 marks and failed by 40 marks. What was the total marks in the examinations?
(a) 100
(b) 200
(c) 300
(d) 400
Ans. b
1540. A fruit seller sells 30% apples and still has 630 apples in the stock. How many apples had he bought?
(a) 189
(b) 700
(c) 900
(d) 2100
Ans. c
1541. If A’s salary is 110% of B’s salary. B’s salary is 80% of C’s, find C’s salary. If A’s salry is Tk. 440.
(a) Tk. 450
(b) Tk. 500
(c) Tk. 550
(d) Tk. 600
Ans. b
1542. If price of oil is increased by 33%, by how much a housewife must reduce consuption of oil so that her expenditure on oil remans the same?
(a) 33%
(b) 25%
(c) 40%
(d) 59%
Ans. d
1543. On selling an article for a certain price, a man loses 30%. What is his loss/profit percent, if he sells the article for double the price?
(a) 60% loss
(b) 15% loss
(c) 40% profit
(d) 30% profit
Ans. c
1544. Area of a square field is 729 square meter. Find its perimeter.
(a) 27 meter
(b) 54 meter
(c) 81 meter
(d) 108 meter
Ans. d
1545. A man sold a horse at 10% profit. Had he bought it at 20% less and sold for Tk. 10 more, he would have made a profit of 40%. What is the cost price of the horse?
(a) Tk. 400
(b) Tk. 500
(c) Tk. 600
(d) Tk. 1000
Ans. b
1546. A and B can do a piece of work in 12 days while A alone can do it in 20 days. How long will B alone take to finish the work?
(a) 8 days
(b) 30 days
(c) 32 days
(d) 50days
Ans. b
1547. If = 4, then x could be equal to -
(a) 2
(b) 3
(c) -3
(d) None of these
Ans. b
1548. একটি ঘড়িতে ৬ টার ঘন্টাধ্বনি ঠিক ৬ টার শুরু করে বাজতে ৫ সেকেন্ড সময় লাগে। যদি ঘন্টাধ্বনি সমান ব্যবধানে বাজে তাহলে ঐ ঘড়িতে ১২ টার ঘন্টাধ্বনি বাজতে কত সেকেন্ড সময় লাগবে?
(a) ১১ সেকেন্ডে
(b) ১২ সেকেন্ডে
(c) ১০ সেকেন্ডে
(d) ১০ সেকেন্ডে
Ans. c
1549. একটি ৫০ মিটার লম্বা মই একটি খাড়া দেয়ালের সাথে হেলান দিয়ে রাখা হয়েছে। মইয়ের এক প্রান্ত মাটি হতে ৪০ মিটার উচ্চে দেয়ালকে স্পর্শ করে। মই এর অপর প্রান্ত হতে দেয়ালের দুরত্ব কত মিটার?
(a) ৩০ মিটার
(b) ২৫ মিটার
(c) ২০ মিটার
(d) ১০ মিটার
Ans. a
1550. জালাল বেলালের চেয়ে ১০ বছরের বড়। যদি ১০ বছর পর জালালের বয়স বেলালের বর্তমান বয়সের দ্বিগুণ হয়, তবে বেলালের বর্তমান বয়স কত?