Question
The given numbers are in the ratio 2:5:6, and their
highest common factor (HCF) is 15. Determine the least common multiple (LCM) of these numbers.Solution
Since, HCF of given numbers is 15. So, numbers are 15 x 2 = 30, 15 x 5 = 75 and 15 x 6 = 90 30 = 2 x 3 x 5 75 = 3 x 5 x 5 = 3 x 52 90 = 2 x 3 x 3 x 5 = 2 x 32Â x 5 Therefore, required LCM = 2 x 32Â x 52Â = 450
Find the total number of Prime factor in the given expression?
315 × 56 × 68
A boy can swim in still water at a speed of 8 km/hr. If the speed of the current would have been 3 km/hr, then the boy could swim 55 km
Three numbers a, b and c are co-prime to each other such that ab = 63 and bc = 77. Find the value of (a + b + c).
Find the LCM of 24, 36 and 54.
If 36 times a number is subtracted from the square of the number and then 324 is added to the result, then the result is zero. Find the L.C.M of the num...
Three numbers are in the ratio 4 : 9 : 13 and their LCM is 2340. Their HCF is:
The LCM of two numbers is 12 times their HCF. The sum of LCM and HCF is 403 and if both the number are smaller than their LCM. Find both the numbers?
The smallest number which when divided by 23 and 28 leaves remainder 11 and 16 respectively is:
The L.C.M of a² – 2a – 3 and a³ + a² + a + 1 isÂ
Find the difference between sum of digits of LCM and HCF of 54, 72 and 90.
Relevant for Exams:
