Quantitative Aptitude - Arithmetic Ability Questions

Prabodh has done 1/2 of a job in 30 days, Sapan completes the rest of the job in 45 days. In how many days can they together do the job?

50% of a = b, then b% of 40 is the same as _________ of a.

The average revenues of 9 consecutive years of a company is Rs 76 lakhs. If the average of first 5 years is Rs 71 lakhs and that of last 5 years is Rs 83 lakhs, find the revenue for the 5th year.

Suppose n is a positive integer such that (n2+ 48) is a perfect square. What is the number of such n?

Ravi is 12 years younger than Surya. Ravi's age is 40% of the sum of his and Surya's age. What will be Surya's age 9 years hence?

If ax= by= cz and b2= ac, then what is 1x+1z equal to ?

In the following question, select the odd word from the given alternatives.

If a person walks at 15 km/hr instead of 9 km/hr, he would have walked 3 km more in the same time. What is the actual distance (in kms) travelled by him?