Question
When the odd digits in the number ‘742726574’ are
decreased by 2 and the remaining digits are increased by 2, then what is the sum of 4th digit from the right end and 5th digit from the left end of the rearranged number?Solution
7Â Â Â Â 4Â Â Â 2Â Â Â Â 7Â Â Â 2Â Â 6Â Â 5Â Â Â 7Â Â Â 4 5Â Â Â 6Â Â Â Â 4Â Â Â Â 5Â Â 4Â Â Â 8Â Â Â 3Â Â 5Â Â 6 Required sum = 4 + 8 = 12.
The LCM of two numbers is 5400 while their HCF is 90. If one of the numbers is 900, then the other number is:
Find the least number of equal sizes square tiles which can be fitted in a rectangular room whose sides are 360 m and 480 m?
If the highest common factor of two numbers is 25, then which of the following may be the least common multiple of the numbers?
The ratio between three numbers is 7:3:2. Their HCF is given to be 5. Determine the LCM of the numbers.
- The sum of HCF and LCM of two numbers is 765. The LCM is 84 times the HCF. If one of the numbers is 85, what is the other number? (find approximate value)
The LCM and the HCF of the numbers 25 and 40 are in the ratio:
The HCF of two numbers 144 and 2160 is:
LCM of 21 5 , 21 10 and 21 15 is?
(1). 21 5
(2). 21 15
(3).2130
The product of two numbers is 504 and their HCF is 6. Total number of such pairs of numbers is?  Â
If the product of two numbers is 80 and their HCF is 5, then find the LCM of the given two numbers.
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