Quantitative Aptitude - Arithmetic Ability Questions

Two donkeys are standing 400 meters apart. First donkey can run at a speed of 3 m/sec and the second can run at 2 m/sec. If two donkeys run towards each other after how much time (in sec) will they bump into each other?

Shivam is 10% less efficient than Vivek. If Vivek can make a helmet in 9 days, then in how many days Shivam can complete the same work?

If x2+1x2-6, then find the value of 2x(x-1)x3-x2-x+1

Koushik can do a piece of work in X days and Krishnu can do the same work in Y days. If they work together, then they can do the work in

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

If 49 is subtracted from the square of a number, then the result obtained is 576. What is the number?

α and β are the roots of quadratic equation. If α + β = 8 and α – β = 2√5, then which of the following equation will have roots α4 and β4?

A sphere of radius 5 cm is melted to form a cone with base of same radius. The height (in cm) of the cone is