Maths Practice Question and Answer
8 Q: If the height and the radius of the base of a cone are both doubled, the volume of the cone becomes _______ of its previous volume.
1333 0642821ab72ca731a99107e82
642821ab72ca731a99107e82- 14 timesfalse
- 28 timestrue
- 33 timesfalse
- 46 timesfalse
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Answer : 2. "8 times"
Q: Two vessels A and B contain spirit and water mixed in the ratio 5:2 and 7:6 respectively. Find the ratio in which these mixture be mixed to obtain a new mixture in vessel C containing spirit and water in the ratio 8:5?
1333 0608830f6e211d4467fdcea5e
608830f6e211d4467fdcea5e- 19 : 7false
- 22 : 3false
- 37 : 5false
- 45 : 7false
- 57 : 9true
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Answer : 5. "7 : 9 "
Q: If the simple interest on ₹ 1 for 1 month is 1 paisa, then the rate percent per annum will be
1333 05f0d5f106d43556009477bdf
5f0d5f106d43556009477bdf- 112%true
- 26 %false
- 310 %false
- 48 %false
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Answer : 1. "12% "
Q: A train moves at a speed of 35 km/h for the first 2 hours and at a speed of 50 km/h for the next 4 hours. Find the average speed of the train during the entire journey.
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6426de97b34a0b67fc16c864- 147 km/hfalse
- 250 km/hfalse
- 345 km/htrue
- 435 km/hfalse
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Answer : 3. "45 km/h"
Q: A container contains a mixture of two liquids, A and B, in the proportion 7 : 5. If 9 liters of the mixture is replaced by 9 liters of liquid B, then the ratio of the two liquids becomes 7 : 9. How much of liquid A was there in the container initially?
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64225509b34a0b67fc0b1657- 121 literstrue
- 235 litersfalse
- 340 litersfalse
- 419 litersfalse
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Answer : 1. "21 liters"
Q: The vertices of the 1 cm side are cut from each corner of a square with a side of 4.5 cm. Find the circumference and area of the octagon formed?
1332 05f87f977e6aa3e1d0bcbcc73
5f87f977e6aa3e1d0bcbcc73- 1$$ {5\sqrt{2}}{\ cm};{18.25{\ cm^{2}}}$$false
- 2$$ {(5+4\sqrt{2})}{\ cm}; {18.25 \ cm^{2}}$$false
- 3$$ {(10+4\sqrt{2})}{\ cm}; {18.25 \ cm^{2}}$$true
- 416 cm and 16 sq.cmfalse
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Answer : 3. "$$ {(10+4\sqrt{2})}{\ cm}; {18.25 \ cm^{2}}$$"
Q: The difference between the length and breadth of a rectangle is 23 m. If its perimeter is 206 m, then its area is
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6332ea732ff7535af672b2b5- 1$$1520 m^2$$false
- 2$$2420 m^2$$false
- 3$$2480 m^2$$false
- 4$$2520 m^2$$true
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Answer : 4. "$$2520 m^2$$"
Q: In ΔPQR, PQ=QR and O is an interior point of ΔPQR such that ∠OPR=∠ORP.
Consider the following statements:
(i) ΔPOR is an isosceles triangle.
(ii) O is the centroid of ΔPQR.
(iii) ΔPQO is congruent to ΔRQO.
Which of the above statements are correct?
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64953b1dcae316dfef75bf02- 1Only (i) and (ii)false
- 2Only (i) and (iii)true
- 3Only (ii) and (iii)false
- 4Only (ii)false
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