Question
The average score of 30 boys in a group test is recorded as 35. However, it was later discovered that two scores of 30 were mistakenly recorded as 40, and one score of 29 was incorrectly noted as 21. What is the correct average score of the group?
More Previous year papers Questions
- A group of people consists of men, women, and children. 20% of them are men, 40% are women and rest are children, and their average weights are 50 kg, 40 k...
- Ramesh and Rahman can do a work in 20 and 25 days respectively. After doing collectively 10 days of work, they leave the work due to illness and Suresh com...
- The average of the square of first seven natural numbers is:
- A, B, and C together can do a piece of work in 14 days, whereas C alone can do the same work in 42 days. How long will A and B together take to finish it?
- The population of a town is 10,000. If the male population increases by 5% and the female population by 10%, the population will become 10,800. How much of...
- In a stock clearance sale, a shopkeeper gives 40% off on all his items. He incurs a loss of 25% by selling an item of marked price Rs. 2,000/-. Which one o...
- Find the surface area of the sphere whose radius is 112 cm and π = 22/7(cm2 ).
- If X = 0.7676767 ..., then find a different number of X values.
- Find the simple interest (in ₹) on ₹2500 as a sum borrowed at 7% per year rate of interest for 4 years.
- A boat can travel with a speed of 15 km/hr in still water. If the speed of the stream is 5 km/hr. find the time taken by the boat to go 80 km downstream.
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
