The average weight of 10 parcels is 1.7 kg. The average weight is reduced by 60 grams when a new parcel is added. How much is the weight of the new parcel?

An examination was conducted for five subjects where the maximum marks for each subject was 100. Scored 82,97, 88 and 91 marks in 4 subjects respectively. If his total marks were 90 percent, then how many marks did he get in fifth subjects?

The owner of a bike buys petrol for 3 years continuously at Rs 64, Rs 80 and Rs 320 per litre respectively. If he spends Rs 32,000 every year buying petrol, what is the average price per litre of petrol?

The average score obtained by Sandeep in 12 Tests is 25. Rumella has an average of 23 marks so far, but has competed in only 8 Tests. What average will Rumela have to earn in the remaining 4 Tests to be equal to Raghuveer's average?

One boy from a group of eight boys left and a new boy with a weight of 56 kg joined the group, which resulted in an average weight of 2.5 kg has increased, what is the weight of the new boy?

The average age of 30 students of a class is 15 years. A 20-year-old student left the class and replaced by two new students, whose age difference is 5 years. If the average age of all students is 15 years, then what will be ratio of young student to elder students. 

The average of 6 numbers is 20. If a number is removed then average becomes 15. In place of removed number by adding a number 39 the average of new 6 number will be__

The total average salary of 50 employees in a company is Rs 5,000. If there are 35 male employees among these employees whose average salary is Rs 6,000, then what will be the average salary of the remaining female employees?