Class 10 Exam > Class 10 Tests > RS Aggarwal Test: Real Numbers - 3 - Class 10 MCQ

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RS Aggarwal Test: Real Numbers - 3 - Question 1

Pairs of natural numbers whose least common multiple is 78 and the greatest common divisor is 13 are:

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RS Aggarwal Test: Real Numbers - 3 - Question 6

If two positive integers p and q are written as p=a^{2}b^{2} and q=a^{3}b, a,b are prime numbers then verify that L.C.M.(p,q)×H.C.F.(p,q)=pq

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RS Aggarwal Test: Real Numbers - 3 - Question 8

Two natural numbers whose sum is 85 and the least common multiple is 102 are:

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RS Aggarwal Test: Real Numbers - 3 - Question 10

If p is a positive prime integer, then √p is –

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RS Aggarwal Test: Real Numbers - 3 - Question 12

If a is a positive integer and p be a prime number and p divides a^{2}, then

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RS Aggarwal Test: Real Numbers - 3 - Question 13

If the HCF of 65 and 117 is expressible in the form 65m – 117, then the value of m is

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RS Aggarwal Test: Real Numbers - 3 - Question 14

If *x* = and *y* = , then the value of (*x*^{2} + *y*^{2}) is

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RS Aggarwal Test: Real Numbers - 3 - Question 19

If two positive integers a and b are written as a = x^{3}y^{2} and b = xy^{3}; x, y are prime numbers, then HCF (a, b) is

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RS Aggarwal Test: Real Numbers - 3 - Question 20

The least number that is divisible by all the numbers from 1 to 10 (both inclusive) is

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RS Aggarwal Test: Real Numbers - 3 - Question 21

What will be the least possible number of the planks, if three pieces of timber 42 m, 49 m and 63 m long have to be divided into planks of the same length?

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