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The L.C.M of a² – 2a – 3 and a³ + a² + a + 1 is
The HCF of two numbers is 6 and their LCM is 84. If one of these numbers is 42, then the second number is:
HCF and LCM of two positive numbers are 24 and 144. If one number is 50% more than the other number, then find the sum of both numbers
The HCF of two numbers 110 and 1980 is:
Three boys runs around a circular track and takes 20 min, 25 min and 30 min respectively to complete the one round. When do they all come relatively to ...
A, B and C start running around a circular track and complete one round in 10, 15 and 25 seconds respectively. In how many seconds will the three meet a...
Find the smallest multiple of 10 that, when divided by 4, 6, and 9, leaves a remainder of 4 in each case.
Find the HCF of 245, 350 and 385.
How many pairs of natural numbers (x, y) exist such that x>y and the product of x, y and HCF (x, y) = 2520? solve this