Quantitative Aptitude - Arithmetic Ability Questions

A, B and C enter into a partnership, investing Rs. 6000. A invests Rs. 1000 and B and C invests in the ratio of 2:3. Find the profit of C, when the annual profit is Rs. 2400

Vikram and Vivek can finish a work in 50 days. They worked together for 20 days and then left. How much work has been done by them?

Bhanu takes a total of 6 hrs 50 min in walking a distance and running back to same place where she started. She could walk both ways in 8 hrs 30 min. The time taken by her to run both ways is :

The sum of two positive integers is 80 & difference between them is 20. Then what is difference of squares of those numbers ?

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

What is the simplified value of 18 - 12 ?

If 2x+29x = 4, then the value of 27x3+127x3

If x = √2+1, then the value of x4-1/x4