mathematics MCQs – Page 71

Practise multiple-choice questions from mathematics for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

mathematics Mcqs

1401. The radius of a cylindrical vessel is 7cm and height is 3cm. Find the whole surface of the cylinder?
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A. 132 sq cm

B. 220 sq cm

C. 308 sq cm

D. 440 sq cm

1402. Find the area of a rhombus whose side is 25 cm and one of the diagonals is 30 cm?
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A. 600 sq.m

B. 480 sq.m

C. 360 sq.m

D. 225 sq.m

1403. The ratio of the volumes of a cube to that of the sphere which will fit inside the cube is________?
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A. 4:02

B. 4:04

C. 6: ?

D. 4:03

1404. Find the area of trapezium whose parallel sides are 20 cm and 18 cm long, and the distance between them is 15 cm.
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A. 225 cm2

B. 315 cm2

C. 285 cm2

D. 275 cm2

1405. Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, then B would have taken 6 hours more than A to fill cistern. How much time will be taken by A to fill the cistern separately?
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A. 1 hr

B. 8 hrs

C. 2 hrs

D. 6 hrs

1406. The parameter of a square is equal to the perimeter of a rectangle of length 16 cm and breadth 14 cm. Find the circumference of a semicircle whose diameter is equal to the side of the square. (Round off your answer to two decimal places)?
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A. 84.92 cm

B. 94.94 cm

C. 23.57 cm

D. 47.14 cm

1407. If the sides of two cubes are in the ratio 3: 1 the ratio of their total surface area is?
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A. 8:01

B. 12:01

C. 9:1

D. 3:01

1408. I. x2
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A. If x ? y

B. If x > y

C. If x < y

D. If x = y or the relationship between x and y cannot be established.

1409. A pupils marks were wrongly entered as 83 instead of 63. Due to the average marks for the class got increased by half. The number of pupils in the class is___________?
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A. 10

B. 20

C. 73

D. 40

1410. Two pipes A and B can separately fill a cistern in 60 min and 75 min respectively. There is a third pipe in the bottom of the cistern to empty it. If all the three pipes are simultaneously opened, then the cistern is full in 50 min. In how much time, the third pipe alone can empty the cistern?
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A. 100 min

B. 90 min

C. 120 min

D. 110 min

1411. The length of a rectangular plot is thrice its breadth. If the area of the rectangular plot is 867 sq m, then what is the breadth of the rectangular plot?
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A. 51 m

B. 17 m

C. 8.5 m

D. 34 m

1412. One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill tank in 36 min, then the slower pipe alone will be able to fill the tank in?
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A. 81 min

B. 144 min

C. 108 min

D. 192 min

1413. The average age of a husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is___________?
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A. 40 years

B. None of these

C. 30 years

D. 35 years

1414. The edges of cuboid are 4 cm; 5 cm and 6 cm. Find its surface area?
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A. 74 cm2

B. 148 cm2

C. 120 cm2

D. 15 cm2

1415. If the volume and surface area of a sphere is numerically the same then its radius is_________?
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A. 2 units

B. 1 unit

C. 3 units

D. 4 units

1416. Find the ratio of the curved surfaces of two cylinders of same heights if their radii are in the ratio 1:2.
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A. 1:04

B. 2:01

C. 1:2

D. 4:01

1417. H.C.F of 4 * 27 * 3125, 8 * 9 * 25 * 7 and 16 * 81 * 5 * 11 * 49 is___________?
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A. 360

B. 1260

C. 540

D. 180

1418. (i). a2
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A. if a < b

B. if the relationship between a and b cannot be established.

C. if a ? b

D. if a > b

1419. What is the length of the longest pole which can be kept in a room 12 m long, 4 m broad and 3 m high?
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A. 12 cm

B. 15 cm

C. 13 cm

D. 10 cm

1420. The length of a rectangle is two fifths of the radius of a circle. The radius of the circle is equal to the side of the square, whose area is 1225 sq.units. What is the area (in sq.units) of the rectangle if the rectangle if the breadth is 10 units?
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A. 214

B. 156

C. 175

D. 140

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