Question
If the 4-digit number x67y is exactly divisible by 9,
then the least value of (x + y) is _____.Solution
x67y is exactly divisible by 9 The sum of its digits must be divisible by 9 x + 6 + 7 + y = x + y + 13 is divisible by 9 Minimum value x + y must be equal to 5 because then the sum will be 18 and it is divisible by 9. ∴ The least value of (x + y) is 5.
The product of two numbers is 216 and their HCF is 6. What is the LCM of the numbers?
The product of two numbers is 3600 and their HCF is 6. Total number of such pairs of numbers is?
What is the difference between the LCM and HCF of 32, 40?
Calculate the Least Common Multiple (L.C.M) of 144 and 180.
The least number which when divided by 9, 12, 15, 18, and 21 leaves the same remainder 7 in each case, is:
If total number of factors of 5,292 is 'x', then find the value of (x - 7)(x + 2).
If HCF of two numbers is 11 then which of the following can never be their LCM?
If Ashish has 3 types of pens in a ratio 4 : 6 : 5 such that their LCM is 360, then find the sum of the highest and lowest number of pens that he has?
The LCM of two numbers is 33 times of their HCF. The sum of the LCM and HCF is 850. If one number is 25, then the other number is:
The HCF of two numbers is 48, and their LCM is 1440. If one of the numbers is 576, find the other number.
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