TN 10TH MATHS - Online Test
Q1. If the radius of the base of a right circular cylinder is halved keeping the same height, then the ratio of the volume of the cylinder thus obtained to the volume of original cylinder is
Answer : Option B
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Q2. The mean of 100 observations is 40 and their standard deviation is 3. The sum of squares of all deviations is
Answer : Option B
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Q3. The range of the relation R
= {(x, x2 ) | x is a prime number less than
13} is
Answer : Option C
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Q4. The least number that is divisible by all the numbers from 1 to 10 (both inclusive) is
Answer : Option D
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Q5. 
is not equal to
is not equal to
Answer : Option B
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Q6. The perimeters of two similar triangles ΔABC and ΔPQR are 36 cm and 24 cm respectively. If PQ = 10 cm, then the length of AB is
Answer : Option D
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Q7. The point of intersection
of 3x − y = 4 and x + y = 8 is
Answer : Option C
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Q8. If 5x = sec θ and 5/x = tan θ, then x2
– (1/ x2) is equal to
Answer : Option B
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Q9. The total surface area of a cylinder whose radius is 1/3 of its height is
Answer : Option C
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Q10. Variance of first 20 natural numbers is
Answer : Option C
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