Maths Practice Question and Answer
8 Q: Successive discounts of 10% and 30% are equivalent to a single discount of :
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624d4e4367b2505d7e56c212- 138%false
- 237%true
- 340%false
- 435%false
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Answer : 2. "37%"
Explanation :
Q: The diameters of two circles are 12 cm and 20 cm, respectively and the distance between their centres is 16 cm. Find the number of common tangents to the circles.
1265 064818bbba33e0f47b7758618
64818bbba33e0f47b7758618- 11false
- 22false
- 33true
- 44false
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Answer : 3. "3"
Q: The length and the breadth of a rectangle are 12 cm and 6 cm, respectively. What is the area of the rectangle?
1265 06422508fb34a0b67fc0b060b
6422508fb34a0b67fc0b060b- 1144$${cm^2}$$false
- 272$${cm^2}$$true
- 356$${cm^2}$$false
- 496$${cm^2}$$false
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Answer : 2. "72$${cm^2}$$"
Q: The length, the breadth, and the height of a cuboid are 40 cm, 20 cm and 10 cm. respectively. What is the volume of this cuboid?
1265 06426e3d8ed76c064b85c8200
6426e3d8ed76c064b85c8200- 1$${16000cm^2}$$false
- 2$${8000cm^2}$$true
- 3$${8000cm^2}$$false
- 4$${4000cm^2}$$false
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Answer : 2. "$${8000cm^2}$$"
Q: If p = 8.15, q = 9.06 and r = −17.21, then the value of p3+q3+r3-3pqr
1265 064818a57f4063d472f33cc74
64818a57f4063d472f33cc74- 1-5.62false
- 24.75false
- 3-3.81false
- 40true
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Answer : 4. "0 "
Q: A mixture contains milk and water in the ratio of 7 : 8. If 10 litres water and 5 litres milk is added in the mixture then the ratio of water and milk becomes 3 : 2. Find the initial quantity in the mixture?
1265 064e7539e646d8ab6ebdc9a8f
64e7539e646d8ab6ebdc9a8f- 130 litresfalse
- 245 litresfalse
- 360 litresfalse
- 415 litrestrue
- 532 litresfalse
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Answer : 4. "15 litres"
Q: Three numbers are in the ratio 1 : 2 : 3 and the sum of their cubes is 4500. What is the smallest number?
1264 06321b71b4eed097ecb527826
6321b71b4eed097ecb527826- 14false
- 25true
- 36false
- 410false
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Answer : 2. "5"
Q: A car runs first 275 km at an average speed of 50 km/h and the next 315 km at an average speed of 70 km/h. What is the average speed (in km/h) for the entire journey?
1263 06479d4e051bf194753ecfb1c
6479d4e051bf194753ecfb1c- 158.5false
- 260false
- 359true
- 462false
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