Quantitative Aptitude - Arithmetic Ability Questions

The sum of three consecutive even numbers is 42. Find the middle number.

A, B and C can finish a job working alone in 20, 30 and 60 days respectively. They all work together for 1 day, then A and B quit. How many days C working alone will take to finish the remaining part of the job?

5% more is gained by selling a watch for Rs. 350 than by selling it for Rs. 340. The cost price of the watch is

Cost price of an article is Rs 360. If the profit percentage is 32%, then what is the value (in Rs) of profit?

ΔABC is right angled at B. If m ∠A = 60°, then what is the value of 1/√3 Cosec C?

Find the value of  x3 - y3, if x - y = 4 and xy = 12.

The ratio of incomes of C and D is 3 : 2. Ratio of income of D and E is 5 : 4. If one-third of C’s income is Rs 4000 more than the half of E’s income, then what is the D’s income (in Rs)?

The reciprocals of the squares of the numbers 11⁄2 and 11⁄3 are in the ratio