Maths Practice Question and Answer
8 Q: 9 persons are seated around a round table. What is the probability that two particular persons sit together?
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620112d5fd5f0218b81d0413- 1$$ {1\over 4}$$true
- 2$$ {2\over 5}$$false
- 3$$ {1\over 3}$$false
- 4$$ {3\over 4}$$false
- 5$$ {2\over 3}$$false
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Answer : 1. "$$ {1\over 4}$$"
Q: The value of sec4 A (1 – sin4A) – 2tan2A is:
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5dd38322874d2d52fa317fac- 1$$ {1\over 2} $$false
- 20false
- 32false
- 41true
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Answer : 4. "1"
Q: Find out value of Cosec $$\left(-{5π\over3} \right)$$?
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5e8b043c7b82aa7479fc4c69- 1$${2\over \sqrt{3}}$$true
- 2$${ \sqrt{3} \over 2}$$false
- 3$${-2\over \sqrt{3}}$$false
- 4$${-1\over \sqrt{3}}$$false
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Answer : 1. "$${2\over \sqrt{3}}$$"
Q: From a circle of radius a, a sector, which subtend an angle π/5 at the centre has been cut off. The perimeter of the remaining part of the circle is
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5f8016aa0a69ab3becc7d2bf- 12πafalse
- 2$$ {π\over 5}{a}$$false
- 3$$ {7π\over 5}{a}$$false
- 4$$ {9π\over 5}{a}$$true
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Answer : 4. "$$ {9π\over 5}{a}$$"
Q: A right triangle with sides 5 cm, 12 cm and 13 cm is rotated about the side 12 cm to from a cone. The volume of the cone so formed is :
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60c08c42e3298a2dec40d26d- 1$$ {81 π \ cm^{3}}$$false
- 2$$ {100 π \ cm^{3}}$$true
- 3$$ {91 π \ cm^{3}}$$false
- 4$$ {110 π \ cm^{3}}$$false
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Answer : 2. "$$ {100 π \ cm^{3}}$$"
Q: The average of five consecutive number is 26, then the multiple of the first and the last number is
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601a4eb78f9c7c5b6d8f14f0- 1722false
- 2672true
- 3648false
- 4576false
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Answer : 2. "672"
Q: Each internal angle of regular polygon is two times its external angle. Then the number of sides of the polygon is:
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5efe82747228dd6b06e6f342- 15false
- 27false
- 38false
- 46true
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Answer : 4. "6 "
Q: The graphs of x = a and y = b intersect at
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5f02c6627a5a806340b1d7ff- 1(-a, b)false
- 2(b, a)false
- 3( a, b )true
- 4(a, -b)false
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