A sum of money amounts to Rs 1024 in 4 years and Rs 1458 in 7 years at a compound rate of interest. What is the rate of interest per annum?
For 3 years, taking cube rootsFor 3 years, taking cube roots = ∛512 = 8 = ∛729 = 9 Rate of interest = (difference of amount)/(first amount)× 100 = (9 - 8)/8 × 100 = 12.5% per annum
A Truck is running at a speed of 72 km/ph. What distance will it cover in 15 seconds?
Two trains start at the same time from A and B and move towards each other at the rates of 10km/h and 27 km/h, respectively. When they meet, it is found...
Rekha travels 50 km at 25 km/h by cycle, 100 km at 50 km/h by car, and the remaining 8 km on foot at 4 km/h. Find her average speed for the whole journe...
A truck travels a distance of 240 km in 8 hours. The speed of a van is 25% more than that of the truck, and the speed of a scooter is 20% more than that...
A man travels to his destination in 8 hours at his normal speed. If his speed decreases by (1/10) , he travels 40 km less in the same time. Determine hi...
X men can complete the piece of work in 32 days and (X + 45) men can complete the same work in 15 days less than that of days taken by X men. Find the v...
1200 metres long train crosses a man who is moving in the same direction with a certain speed, in 30 seconds. If the same train can cross a tree in 20 s...
In a 330-metre race, ‘A’ beats ‘B’ by 26 seconds or 78 metres. Find the time taken by ‘B’ to finish the race.
Aman takes 36 minutes more than Sudhanshu to cover a distance of 130 km. If Aman doubles his speed, he takes 42 minutes less than Sudhanshu to cover the...
If the sum of upstream and downstream speed is 32 km/hr and the speed of the current is 6 km/hr. Then find time taken to cover 44 km in downward?
