Quantitative Aptitude - Arithmetic Ability Questions

If 10 people can do a job in 20 days,then 20 people with twice the efficiency can do the same job in

A man travels 50 km at speed 25 km/h and next 40 km at 20 km/h and there after travel 90km at 15 km/h. His average speed is

If in 3 years at simple interest the principal increases by 18%, what will be the compound interest (in Rs) earned on Rs. 25,000 in 3 years at the same rate?

Ram cycles 5 km in the south, and turns left to travel 5 km further. From there, he takes a right turn and travels 5 km more. How far is he from his original position?

If 4/5th of 6/7th of a number is 216, then 8/9th of that number will be

A sum of Rs. 2000 amounts to Rs. 4000 in two years at compound interest. In how many years does the same amount becomes Rs. 8000.

If 3sinθ+4cosθ=5 (0<θ<90°) then the value of sinθ is

If 4x - 5(2x - 1) > 2x + 3 > 2 - 3x; then x can take which of the following values?