Maximum profit will be earned when the cost price is least and selling price is maximum. Therefore, least cost price of 12 watches = 12 × 1350 = Rs. 16200 Maximum selling price of 12 watches = 12 × 1800 = Rs. 21600 Therefore, maximum profit that can be earned = 21600– 16200 = Rs. 5400
A train takes 30 minutes to travel 20 km, but due to maintenance, its speed is reduced by 25% for the next 10 km. Find the total time taken by the train...
A train 'B' speeding with 100 kmph crosses another train C, running in the same direction, in 2 mins. If the length of the train B and C be 150m and 250...
‘A’ and ‘B’ started moving towards each other at same time with a speed of 23 km/hr and 10 km/hr, respectively. If the distance covered by ‘Aâ...
A person travels 240 km partly by car and partly by train. He spends 2 hours more traveling by train than by car. The speed of the car is 60 km/h, and t...
A person travelled a distance of 200 km in 7 hours. He travelled partly on a car at the speed of 50 kmph and partly on cycle at 20 kmph. What is the dis...
A and B are travelling towards each other with a speed of 15 km/hr and 25 km/hr. They started at same time and A covered 20 km less distance than B befo...
A Truck is running at a speed of 72 km/ph. What distance will it cover in 15 seconds?
A boy can swim a certain distance downstream in 5 hours and return in 7 hours. If the rate of stream is 4 kmph then what is the speed of boy in still wa...
The speed of a scooter is 80 km/h and it takes 5 hours to cover a certain distance. A car covers the same distance in 4 hours. If the speed of the scoot...
‘A’ and ‘B’ started moving towards each other at same time with a speed of 26 km/hr and 13 km/hr, respectively. If the distance covered by ‘Aâ...
