mathematics MCQs – Page 60

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 Review each marked answer and report any item that may be outdated or unclear.

1181. Find the area of circle whose radius is 7m?
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A. 145 sq m

B. 154 sq m

C. 124 sq m

D. 167 sq m

1182. One side of a rectangular field is 4 m and its length along diagonal is 5 m. What is the area of the field?
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A. 4?14 sq m

B. 15 sq m

C. 12 sq m

D. 20 sq m

1183. The ratio between the length and breadth of a rectangular field is 5:4. If the breadth is 20 meters less than the length. The perimeter of the field is_________?
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A. None of these

B. 260m

C. 280m

D. 360m
1184. If the base of rectangle is increased by 10 % and the area is unchanged then the corresponding altitude must be decreased by:________?
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A. 11.11%

B. 9 1/11 %

C. 11%

D. 10%

1185. 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. 295m<sup>2</sup>

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

C. 300m<sup>2</sup>

D. 299m2
1186. The product of two numbers is 4107. If the H.C.F of these numbers is 37, then the greater number is_________?
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A. 111

B. 101

C. 107

D. 185

1187. Three men start together to travel the same way around a circular track of 11 kilometers in circumference. Their speeds are 4, 5 and 8 kilometers per hour respectively. When will they meet at a starting point?
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A. 11 hours

B. 12 hours

C. 22 hours

D. 220 hours

1188. A wheel makes 1000 revolutions is covering a distance of 88 km. the diameter of the wheel is
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A. 40m

B. 24m

C. 14m

D. 28m
1189. If the perimeter of a rectangular garden is 600 m, its length when its breadth is 100 m is________?
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A. 600 m

B. 650 m

C. 300 m

D. 200 m
1190. A rectangular measure 8cm on length and its diagonals measures 10cm what is the perimeter of the rectangular?
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A. 28cm

B. 18cm

C. 38cm

D. 36cm

1191. If the wheel is 14 cm then the number of revolutions to cover a distance of 1056 cm is?
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A. 14

B. 12

C. 10

D. 15

1192. The Length of a plot is four times is breadth. A playground measuring 1200 square meters occupies a third of the total area of the plot. What is the length of the plot in meters?
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A. None of these

B. 30

C. 60

D. 20

1193. The length and breadth of a rectangular piece of land are in the ratio of 5:3. The owner spent Rs 3000 for surroundings it from are the sides at Rs 7.50 per meter. The difference between is length and breadth is_________?
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A. 50m

B. 150m

C. 200m

D. 100m

1194. The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?
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A. 50% increase

B. 25% increase

C. 50% decrease

D. 75% decrease

1195. LCM of two numbers is 138. But their (Greatest common divisor) GCD is 23. The numbers are in a ratio 1:6. Which is the largest number amongst the two?
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A. 138

B. 69

C. 46

D. 23

1196. 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. 24/5 cm

B. 12/5 cm

C. None of these

D. 7/5 cm

1197. There are four prime numbers written in ascending order of magnitude. The product of the first three is 7429 and of the last three is 12673. Find the fourth number?
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A. 29

B. 17

C. 31

D. 23

1198. The length of the rectangular field is double its width. Inside the field there is square shaped pond 8m long. If the area of the pond is 1/8 of the area of the field. What is the length of the field?
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A. 16 m

B. 20 m

C. 31 m

D. 32 m
1199. Five bells first begin to toll together and then at intervals of 5, 10, 15, 20 and 25 seconds respectively. After what interval of time will they toll again together?
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A. 5.2 min

B. None

C. 5.5 min

D. 5 min
1200. The wire bent in the form of a square enclose an area of 484 Sq.cm. If the same wire is bent so as to from a circle than the area enclosed will be_________?
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A. 538 2/7 Sq.cm

B. 484Sq.cm

C. 616 Sq.cm

D. 644 Sq.cm