Question
A vessel is full of 90l milk, 15liter milk is taken out
and replaced by water and again this process is repeated 2 more times, the amount of milk left after the 3rd replacement is? type-sscSolution
The amount of milk in replace mixture – =90(1-15/90)3 =90×5/6 ×5/6 ×5/6 =90×125/216 =52.05 liter
There are ‘x’ students in a class. Out of them ‘y’ are girls. The number of boys is 5 more than the number of girls. The sum of weight and the a...
Average of 12 positive integers is calculated as 50. It was later found that while calculating the average, someone mistakenly entered 32 instead of 44...
- Kohli smashed 150 runs, contributing 75% of the team’s total. Given that extras amounted to 20 runs, what was the total contribution from the rest of the...
A class has 20 boys and 15 girls. The average marks of boys is 68 and of girls is 72. Find the approximate average marks of the whole class.
The average rainfall recorded over the first three days of a week was 85 cm, whereas the average for the last three days was 92 cm. If the weekly averag...
The university has 750 faculty (male and female only) out of which the females are 60%. The average height of females is 162 cm and that of males is 168...
The average of six numbers is 8. When three new numbers are included in such a way that the first number is  twice the second and second number is thri...
Nora claims her age is between 18 and 22 years. Her grandmother says Nora's age is between 20 and 24 years. Her aunt thinks her age is between 19 and 21...
The average of series 'S9', which consists of 6 consecutive even numbers, is 19. The second term of series 'T9', which consists of 5 consecutive odd num...
- What is the average of the squares of the first 25 natural numbers?
Relevant for Exams:
