'Akshay' alone takes 18 days to finish a work while 'Bhim' alone takes 24 days to finish the same work. If 'Akshay' and 'Bhim' work on alternate days starting with 'Akshay', then find the time taken to complete the whole work this way.
Let, the total work be LCM of [18, 24] = 72 units Efficiency of 'Akshay' = (72/18) = 4 units/day Efficiency of 'Bhim' = (72/24) = 3 units/day Amount of work done in first two days = 4 x 1 + 3 x 1 = 7 units Amount of work done in 20 days = 7 x 10 = 70 units Total time taken to complete the work = 2 x (70/7) + (2/4) = 20 + 0.5 = 20.5 days
What are the Highest Common Factor and Lowest Common Multiple of 6, 72, 120?
The sum of two numbers is 444 and their HCF is 37. Find all the possible pairs of such numbers?
Find the greatest number that will divide 115, 149 and 183 leaving remainders 3, 5, 7 respectively.
The HCF of two numbers is 12. Which one of the following can never be their LCM?
The LCM of two numbers is 960 while their product is 7680. Find the greatest common divisor of the two numbers.
The LCM of two numbers is 1991 and their HCF is 23. If one of the numbers is 181, the other number is
From a point on a circular track 10 km long A, B and C started running in the same direction at the same time with speeds of 3(1/3) km/h, 5 km/h and 2 k...
Find the largest four-digit number which when divided by each of 18, 21 and 24 leaves a remainder of 7.
Let x be the smallest number which when subtracted from 31560 makes the resulting number divisible by 13, 16, 25 and 30. The product of the digits of x ...
The HCF and LCM of two consecutive even number is 2 and 112 respectively. Find the sum of reciprocal of these two numbers?
