Quantitative Aptitude - Arithmetic Ability Questions

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

If cot(A/2) = x, then the value of x is

P(4,2) and R(-2,0) are vertices of a rhombus PQRS. What is the equation of diagonal QS.

Type 1 workers can do three times the work of Type 2 workers. Twelve Type 1 workers can complete a task in 10 days. How many days would it have taken 4 Type 1 and 8 Type 2 workers to complete the same task?

If a - b = -5 and a2+b2=73, then find ab.

A person clapped his hands near a cliff and heard echo after 6 s. The distance of the cliff from the personis: [take v = 346 m/s]

A missile travels at 1116 km/h. How many metres does it travel in one second?

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