MEDIUM
10th CBSE
IMPORTANT
Earn 100

Using Euclid’s algorithm, find the HCF of 960 and 1575.

Important Questions on Real Numbers

MEDIUM
10th CBSE
IMPORTANT
Show that every positive integer is either even or odd?
MEDIUM
10th CBSE
IMPORTANT
Show that any positive odd integer is of the form (6m+1) or (6m+3) or (6m+5), where m is some integer.
EASY
10th CBSE
IMPORTANT
Show that any positive odd integer is of the form (4m+1) or (4m+3) where m is some integer.
HARD
10th CBSE
IMPORTANT
For any positive integer n, prove that n3-n is divisible by 6
MEDIUM
10th CBSE
IMPORTANT
Prove that if x and y are both odd positive integers then x2+y2 is even but not divisible by 4.
MEDIUM
10th CBSE
IMPORTANT
Use Euclid's algorithm to find HCF of 1190 and 1445. Express the HCF in the form 1190m+1445n
MEDIUM
10th CBSE
IMPORTANT
Using prime factorization, find the HCF and LCM of 36, 84. In each case, verify that HCF × LCM= product of given numbers.
MEDIUM
10th CBSE
IMPORTANT
Using prime factorization, find the HCF and LCM of 23, 31. In each case, verify that HCF×LCM= product of given numbers.