The sum of 7 multiple of 18 = (18+36+........126) = 18(1+2+......7) = 18(7×8)/2 =18×28 Average = (18×28)/7 =18×4=72
Consider two natural numbers, 'a' and 'b', which are in the ratio of 17:20. If we increase 'a' by 18 and decrease 'b' by 20, the new ratio of 'a' to 'b'...
Find the smallest 4 digit number that is completely divisible by both 24 and 44.
Determine the smallest possible value of 'P' that makes the eight-digit number '4423P456' fully divisible by 3.
The product of two co-prime numbers is 945 then find their LCM.
The average of five consecutive even numbers is 22. What is the smallest of these numbers?
(7352-1) is divisible by
Find the average of first 19 whole numbers.
There are two types of animals in a pet shop. Some are puppies and some are kittens. Each kitten takes 8 biscuits and each puppy takes 11 biscuits. If 5...