mathematics MCQs – Page 66

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 Review each marked answer and report any item that may be outdated or unclear.

3251. The radius of a circular wheel is 17.5m. How many revolutions will it make in travelling 11km?
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A. 10,000

B. 100

C. 1000

D. 10

3252. The length of a rectangle is increased by 25% and its breadth is decreased by 20%. What is the effect on its area?
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A. 5% increase

B. 5% decrease

C. Remains same

D. 10% increase

3253. The perimeter of a floor of a room is 18m.What is the area of four walls of the room if it; a height is 3m?
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A. 108 Sq.m

B. 21 Sq.m

C. 42 Sq.m

D. 54 Sq.m
3254. In a Circle of Radius 5 cm if AB and AC are two equal chords of length 6cm each, then the length of chord BC is___________?
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A. 7/5 cm

B. 12/5 cm

C. None of these

D. 24/5 cm

3255. The side of a rhombus is 26 m and length of one of its diagonals is 20 m. The area of the rhombus is_______?
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A. 240 sq m

B. 529 sq m

C. 480 sq m

D. 260 sq m

3256. Find the cost of fencing around a circular field of diameter 28 m at the rate of Rs.1.50 a meter?
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A. Rs.132

B. Rs.100

C. Rs.150

D. Rs.125

3257. The radius of the two circular fields is in the ratio 3: 5 the area of the first field is what percent less than the area of the second?
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A. 50%

B. 40%

C. 60%

D. 64%
3258. If each side of a square is increased by 50% the ratio of the area of the resulting square to the area of the given square is__________?
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A. 5:04

B. 4:05

C. 9:4

D. 4:09

3259. The length of a rectangular plot is increased by 25%. To keep its area uncharged the width of the plot should be___________?
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A. Increased by 20%

B. Kept unchanged

C. Reduced by 20%

D. Increased by 25%

3260. The areas of two similar triangles are 12 cm2 and 48SQ. cm .If the height of the smaller one is 2.1cm than the corresponding height of the bigger one is_________?
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A. 60%

B. 4.2cm

C. 80%

D. 0.525cm

3261. The diagonal of a square is 4?2cm. The diagonal is another square whose area is double that of the first square is__________?
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A. 4?2cm

B. 8?2cm

C. 8cm

D. 16cm

3262. The area of a square field is 6050 Sq.m.The length of it diagonal is_________?
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A. 112m

B. 110m

C. 120cm

D. 135m

3263. A circle and a rectangle have the same perimeter. The sides of the rectangle are 18cm and 26cm.What is the area of the circle?
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A. 88cm<sup>2</sup>

B. 154cm<sup>2</sup>

C. 1250cm<sup>2</sup>

D. 616cm2
3264. If the side of a square is increased by 25% then its area is increased by_________?
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A. 55%

B. 40.50%

C. 25%

D. 56.25%
3265. The area of a rhombus in 2016 Sq.cm and its side is 65cm. The length of its diagonals are________?
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A. 125cm, 35cm

B. 135cm,25cm

C. 132cm,26cm

D. 126cm,32cm
3266. If the height of a triangle is decreased by 40% and its base is increased by 40% what will be the effect on its area?
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A. 16% Decrease

B. 8%decrease

C. 16%increases

D. No change

3267. If an area enclosed by a circle or a square or an equal triangle is the same then the maximum perimeter is possessed by_________?
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A. Circle

B. Square

C. Equilateral Triangle

D. Both Triangle and Square
3268. If the length and width of a rectangular grand are each increased by 20% then what would be the percent increase in the area of the garden?
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A. 44%

B. 24%

C. 20%

D. 36%

3269. A typist uses a paper 30cm x 15cm.He leaves a margin at 2.5cm at the top and the bottom and 12.5cm on either side. What percentage of paper area is approximately available for typing
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A. 60%

B. 65%

C. 80%

D. 70%

3270. The perimeter of a rectangle is 60m. If its length is twice its breadth then its area is__________?
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A. 200m2

B. 160m<sup>2</sup>

C. 180m<sup>2</sup>

D. 220m<sup>2</sup>

3271. The sides of a triangle are in the ratio : 1/3: . If the perimeter is 52cm then the length of the smallest side is________?
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A. 10cm

B. 11cm

C. 9cm

D. 12cm
3272. The length of a rectangular plot is twice its breadth. If the area of the rectangular plot is 6075 sq.meters .what is its length?
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A. 75m

B. 135m

C. 45m

D. None of these

3273. The perimeter of a rectangle and square are 160m each. The area of the rectangle is less than that its square by 100cm meters. The less than that of the square by 100 sq.meters. the length of rectangle is___________?
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A. 40m

B. 50m

C. 60m

D. 30m

3274. A rectangular field has dimensions 25m by 15m. Two mutually perpendicular passage of 2m width have been left in its central part and grass has been grown in rest of the field. The area under the grass is____________?
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A. 300m<sup>2</sup>

B. 375m<sup>2</sup>

C. 295m<sup>2</sup>

D. 299m2
3275. The area of a rectangle is 12 sq.metres and its length is 3 times that of its breadth. What is the perimeter of the rectangle?
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A. 18m

B. 14m

C. None of these

D. 4m

3276. If the length of a rectangle is increased by 20% and its breadth is decreased by 20% then it area________?
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A. Remains unchanged

B. Decreased by 1%

C. decreased by 4%

D. Increased by 4%

3277. The largest size of bamboo that can be placed in a square of area 100 sq.meters is__________?
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A. 10m

B. 14.14m

C. 25m

D. 20m

3278. The area of largest triangle that can be inscribed in a semicircle of radius R cm is__________?
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A. 1/2 R<sup>2</sup> cm<sup>2</sup>

B. 2R cm<sup>2</sup>

C. R2 cm2

D. 2 R<sup>2</sup> cm<sup>2</sup>

3279. (98 / 7 / 2) / ? = 14
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A. 5-Jan

B. 4-Jan

C. 3-Jan

D. 1/2
3280. (6 2 * 3 + 6) / (2 + 6 * 3 4) = _____________?
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A. 5-Mar

B. 10-Mar

C. 8-Sep

D. 3/8
3281. (830 + ? * 3 * 14 / 100) (830 * 14 * 3 / 100) = 20.16
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A. 36

B. 48

C. None of these

D. 24

3282. [(7 * 9) + (2 * 12) + 3]/[(12 * 3) + (81/9)] = ______?
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A. None of these

B. 1.75

C. 60

D. 4

3283. 26.98% of 6002 + 45.01% of 4199 = ________?
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A. 4500

B. 3600

C. 3500

D. 2500

3284. 16.66% of 33.33% of 66.66% of ? = 30
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A. 810

B. 240

C. 90

D. 270

3285. 25 2/5 + 8 4/5 + 4/5 = _________?
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A. 34

B. 36

C. 35

D. 37

3286. 105 * 99 * 299 = _________?
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A. 315000

B. 442000

C. 785600

D. 845000

3287. 6 2/3 * 9 3/5 * 2 1/3 + 1 1/3 = __________?
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A. 149 2/3

B. 149 1/3

C. 150 2/3

D. 150 1/3

3288. ??/9261 = 11/21
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A. 14641

B. 2662

C. 1331

D. 121

3289. 6 of 5/8 / 5/8 1/8 = ______?
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A. 5 3/4

B. 6 3/4

C. 5 7/8

D. 6 1/8

3290. 2758 + 20581 17889 = ________?
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A. 178

B. 7850

C. 4800

D. 5200
3291. A man has some hens and cows. If the number of heads be 48 and the number of feet equals 140, then the number of hens will be_________?
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A. 23

B. 24

C. 26

D. 22

3292. If (4<sup>61
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A. 13

B. 11

C. 3

D. None of these
3293. If x % of 80 = 20% of y, then x = ? and y = ?
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A. Cannot be determined

B. x = 20, y = 20

C. x = 20, y = 40

D. x = 20, y = 80

3294. 24 [2.4 {0.24 * 2 (0.024 ?)}] = 22.0584
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A. 0.0024

B. 0.00024

C. 0.24

D. 0.024

3295. 25 * 25 / 25 + 15 * 40 = ________?
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A. 25/64

B. 525

C. 625

D. 125

3296. [3/7 of {21 * (33.33% of (27 + 3) 5) 7} 8] = _______?
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A. 10

B. 49

C. 7

D. 15

3297. 7 + 5 (3/2 * 1/4) of 2/7 + 7/2 * 1/6 equals ________.
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A. 12 3/88

B. 12

C. 24 7/8

D. 12 25/224
3298. 3/7 of 4/9 of 2/5 of 7560 = (?)<sup>2
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A. 26

B. 18

C. 24

D. 22

3299. (0.456 * 0.456 0.228 * 0.228) / (0.456 + 0.228) = ________?
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A. 0.228

B. 0.684

C. 0.456

D. 1

3300. 2222.2 + 222.22 + 22.222 = ________?
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A. 2466.462

B. 2466.642

C. 2664.642

D. 2464.462