Question
Which Index number satisfies both the time reversal test
and the factor reversal test?Solution
Only Fisher's index number is the ideal index number which satisfies time reversal and factor reversal test.
Two numbers are in the ratio 2:7. The product of their H.C.F. and L.C.M. is 5054. The sum of the numbers is:
Find the HCF of 240, 280 and 560.
The LCM of six consecutive numbers is 420. The sum of the first and fourth numbers is equal to the sixth number. What is the product of six numbe...
The LCM of two numbers is 960 while their product is 7680. Find the greatest common divisor of the two numbers.
- What is the unit digit of the number 'A' obtained by subtracting the largest two-digit prime number from the least common multiple (LCM) of all single-digi...
Find the greatest number of 4 digits divisible by 15, 25, 40 and 75.
What are the Highest Common Factor and Lowest Common Multiple of 6, 72, 120?
Three numbers are in the ratio 3:7:2 respectively. If the HCF of the numbers is 5, then find the LCM of the numbers.
The smallest number which when divided by 24 and 32 leaves remainder 10 and 18 respectively is:
HCF of two numbers 65 and 104 can be expressed in the form of (40m – 107) whereas LCM of these two numbers can be expressed in the form of (60n – 20...
