mathematics MCQs – Page 73

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 Review each marked answer and report any item that may be outdated or unclear.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

1441. Find the expenditure on digging a well 14m deep and of 3m diameter at Rs.15 per cubic meter?
0

A. Rs.1385

B. Rs.1285

C. Rs.1485

D. Rs.1185

1442. The mean marks of 30 students in a class is 58.5. Later on it was found that 75 was wrongly recorded as 57. Find the correct them.
0

A. 58.9

B. 57.5

C. 59.1

D. 57.4

1443. What will be the cost of building a fence around a square plot with area equal to 289 sq ft, if the price per foot of building the fence is Rs. 58?
0

A. Rs. 3944

B. Rs. 4176

C. None of these

D. Rs. 3828

1444. A brick measures 20 cm * 10 cm * 7.5 cm how many bricks will be required for a wall 25 m * 2 m * 0.75 m?
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A. 24000

B. 22000

C. 25000

D. 23000

1445. The diameters of two spheres are in the ratio 1:2 what is the ratio of their volumes?
0

A. 3:04

B. 4:03

C. 1:8

D. 9:16

1446. A wire in the form of a circle of radius 3.5 m is bent in the form of a rectangule, whose length and breadth are in the ratio of 6 : 5. What is the area of the rectangle?
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A. 45 cm2

B. 30 cm2

C. 60 cm2

D. 15 cm2

1447. How many cubes of edge 2 dm can be cut out of a meter cube?
0

A. 216

B. 64

C. 125

D. 50

1448. A gardener was asked a plant flowers in a row containing equal number of plants. He tried to plant 6, 8, 10 and 12 in each row, but 5 plants left in each case. When he planted 13 in a row, no plant was left. Find the number of plants with him?
0

A. 245

B. 125

C. 845

D. 485

1449. The edges of a cuboid are 4 cm, 5 cm and 6 cm. Find the volume of the cuboid?
0

A. 15 cm3

B. 120 cm2

C. 120 cm3

D. 148 cm2

1450. Two pipes A and B can separately fill a tank in 12 and 15 minutes respectively. A third pipe C can drain off 45 liters of water per minute. If all the pipes are opened, the tank can be filled in 15 minutes. What is the capacity of the tank?
0

A. 480 liters

B. 540 liters

C. 600 liters

D. 675 liters

1451. The length of a rectangular floor is more than its breadth by 200%. If Rs. 324 is required to paint the floor at the rate of Rs. 3 per sq m, then what would be the length of the floor?
0

A. 18 m

B. 24 m

C. 21 m

D. 27 m

1452. In a party there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at the least two couples?
0

A. 16/21

B. 5/21

C. 14-Sep

D. 14-May

1453. The curved surface area of a cylindrical pillar is 264 m2 and its volume is 924 m3. Find the ratio of its diameter to its height.
0

A. 3:07

B. 7:06

C. 7 : 3

D. 6:07

1454. The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.
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A. 48 kg

B. 49.25 kg

C. 47.55 kg

D. 48.55 kg

1455. A drink vendor has 80 liters of Maaza, 144 liters of Pepsi and 368 liters of Sprite. He wants to pack them in cans, so that each can contains the same number of liters of a drink, and doesnt want to mix any two drinks in a can. What is the least number of cans required?
0

A. 30

B. 42

C. 37

D. 35

1456. The mean of 50 observations was 36. It was found later that an observation 48 was wrongly taken as 23. The corrected new mean is___________?
0

A. 36.1

B. 39.1

C. 35.2

D. 36.5

1457. Find the greatest number that exactly divides 35, 91 and 840?
0

A. 6

B. 8

C. 7

D. 5

1458. Three 6 faced dice are thrown together. The probability that all the three show the same number on them is -.
0

A. 1/36

B. 9-May

C. 12-May

D. 1/216

1459. Three 6 faced dice are thrown together. The probability that exactly two dice show the same number on them is -.
0

A. 9-May

B. Jan-36

C. 12-Jul

D. 5/12

1460. The circumferences of two circles are 264 meters and 352 meters. Find the difference between the areas of the larger and the smaller circles.
0

A. 4304 sq m

B. 4360 sq m

C. 4192 sq m

D. 4312 sq m

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