Class 10 Maths1)The prime factors of 196 are
\(2^2 \times 7^2\)
Class 10 Maths2)
The decimal expansion of \(\frac{{987}}{{10500}}\)will terminate after:
3 decimal places
Class 10 Maths3)For every positive integer n,\(n^2\) - n is divisible by
2
\(n^2 \)- n = n(n - 1). Since n and (n - 1) are consecutive integers. Therefore, one of them must be divisible by 2.
Class 10 Maths4)The HCF of two consecutive numbers is
1
The HCF of two consecutive numbers is always 1. ( e.g. HCF of 24, 25 is 1).
Class 10 Maths5)A number when divided by 143 leaves 31 as remainder. What will be the remainder when the same number is divided by 13?
5
Class 10 Maths6)120 can be expressed as a product of its prime factors as:
\(5 × 2^3 × 3\)
\(120 = 5 × 2^3 × 3\)
Class 10 Maths7)
The product of two numbers is 1600 and their HCF is 5. The LCM of the numbers is
320
Class 10 Maths8)By Euclid’s division lemma x = qy + r, x > y the value of q and r for x = 27 and y = 5 are:
q = 5, r = 2
x = qy + r
27 = 5 ×× 5 + 2
q = 5, r = 2
Class 10 Maths9)The decimal expansion of \(23 \over 2^5×5^2 \) will terminate after how many places of decimal?
5
Class 10 Maths10)HCF of 144 and 198 is:
18