Quantitative Aptitude - Arithmetic Ability Questions

The length of the diagonal of a square is 12 cm. Find its area (in cm2).

If a - b = 1 and ab = 6, then what is the value of a3- b3?

The area of a circle is 346.5 cm2. Find its circumference (in cm).

Choose the word is least like the other words in the group

Prahlad has done 1/3rd of a job in 30 days, Sarfaraz completes the rest of the job in 90 days. In how many days can they together do the job?

The average age of 24 students is 12 years. It was observed that while calculating the average age, the age of a student was taken as 14 years instead of 8 years. What will be the correct average age (in years)?

Flight A usually takes 1 hour more than Flight B to travel a distance of 7200 km. Due to engine trouble speed of flight B falls by a factor of 1/6th, so it takes 36 minutes more than Flight A to complete the same journey? What is the speed of Flight A (in km/hr)?

Find out the odd word/letters/number/number pair from the given alternatives.