Question
Determine the unit digit of the product:
785×6194×319×1296Solution
Unit digit of the product of 785 × 6194 × 319 × 1296 = unit digit of the product of the unit digits of each of the 4 numbers i.e. unit digit of 5 × 4 × 9 × 6 = 1080 Unit digit of 1080 is ‘0’
Average age of company A is 23 years and average age of both companies A and B is 15 years. If the ratio of number of employees in company A and B is 3:...
The average weight of 25 students in a classroom was found to be 52 kg. Later, it was discovered that one student’s weight was taken as 59 kg instead ...
- The average of 9 scores is 45. If two new scores are added and their average is 'x', the overall average becomes 20% more than the previous average. Find t...
A bowler gives 15 runs per wicket. He gives 30 runs and takes 5 wickets in a last match after which his average becomes 13.5 runs per wicket. How many ...
The average salary of a group of 12 employees is Rs. 60,000. When one employee departs, the average salary of the remaining 11 employees drops by Rs. 2,...
Consider a group consisting of 16 females with an average age of 25 years and 20 males with an average age of 35 years. What is the approximate average ...
The combined average number of pens with persons ‘B’ and ‘C’ is 75% of the combined average number of pens with persons ‘A’ and ‘D’. The...
5 positive numbers are written on a piece of paper. Sum of first 3 numbers is 50 and ratio of the 4th and the 5th number is 2:3. If difference between t...
The average of n numbers is 65. If each of 54% of the numbers is increased by 15 and each of the remaining numbers is decreased by 10, then the new aver...
In a cricket match the captain of one of a team scored 23 runs more than the average runs scored by the remaining 9 batsmen of that team who batted in t...
