Question
Select the correct mirror image of the given
combination when the mirror is placed at 'PQ' as shown.Solution
The average of 16 numbers is 75. The first six numbers and the last five numbers have averages of 90 and 72 respectively. The ninth number exceeds the ...
Average marks scored by each boy in a class were 70, whereas that by each girl were 80. If the number of boys is 50% more than the number of girls, then...
The average of 6 numbers is 40. Later, two more numbers are added whose average is 'x' . After this, the overall...
Average run scored by a batsman in first ‘x’ matches is 70. In next 12 matches he scored runs with an average of 90 so that his overa...
Average of 4 positive integers is calculated as 45. It was later found that while calculating the average, someone mistakenly entered 28 instead of 36. ...
The average of 8 consecutive even numbers written in ascending order is 17. What is the average of the last three numbers, 36 and 53 ?
The number of students in class 'A' is 104, and the ratio of girls to boys is 4:9. If the average number of boys in classes 'A' and 'B' is 124, and the ...
The average of a set of 's' numbers is 45. If 180 is added to the set, then the average of the set becomes 45.2. Find the value of '4 X (s - 18)'.
 In a school with 400 students, the average age of the boys is 16 years and that of the girls is 12 years. If the average age of school is 14 years 9 m...
The average of 6 numbers is 45. If one more number is added, the new average becomes 47. Find the number added.
