Quantitative Aptitude - Arithmetic Ability Questions

A can paint a house in 42 days and B can do it in 21 days. Along with C, they can finish the job in 7 days only.C alone can do the painting job in how many days, ?

The sum of the digits of a 2­digit number is 17. If we add 9 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.

Raghu's tanker can fill a cistern in 4 hours. After half the cistern is filled, three more similar tankers are opened. What is the total time taken to fillthe cistern completely?

In a class of 50 students there are 27 girls. The average weight of these girls is 45 kg and average weight of the full class is 49.6 kgs. What is the average weight of the boys of the class?

A, B and C can work together for Rs. 550/- A and B together are to do 7/11 of the work. The share of C should be?

If the time increases by 5 years, then simple interest increases by Rs 3000 on a sum of Rs 5000. What is the rate (in percentage) of interest per annum?

A sum of Rs. 69 was divided between Jason and Ruhana in the ratio 1:2. How much money did Ruhana get?

Rearrange the jumbled up letters to form a meaningful word and find the odd one out.