Quantitative Aptitude - Arithmetic Ability Questions

The mean of 21 observations (all different) is 40. If each observation greater than the median is increased by 21, then the mean of observations will become:

Filed Under: Average
Exam Prep: AIEEE , Bank Exams , CAT

Angle of Elevation means

Subject: Height and Distance Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

If the hour hand of a clock moves by 18 deg then by how many degrees does the minute hand move during the same time?

Filed Under: Clocks
Exam Prep: Bank Exams , CAT

A and B can complete a task in 1.5 days. However, A had to leave a few days before the task wascompleted and hence it took 2 days in all to complete the task. If A alone could complete the work in2.625 days, how many days before the work getting over did A leave?

Filed Under: Time and Work
Exam Prep: Bank Exams

30 women do half of the total work in 30 days. How many more women will be required to complete the remaining work in 10 days?

Filed Under: Time and Work
Exam Prep: Bank Exams

Parvesh is three times as efficient as Dinesh. Parvesh takes 20 days less than Dinesh to complete a book. If both of them work together, then in how many days the book will be completed?

Filed Under: Time and Work
Exam Prep: Bank Exams , CAT

A company, at the time of inflation reduced the staff in the ratio 5 : 3 and average salary per employee is increased in the ratio 7 : 8. By doing so, the company saved Rs 55000. What was the initial expenditure (in Rs) of company?

Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

In the given figure, E and F are the centers of two identical circles. What is the ratio of area of triangle AOB to the area of triangle DOC?

Filed Under: Simplification
Exam Prep: Bank Exams