Question
The ratio of Raj’s to Simran’s salary is 3:
5. If Simran’s salary is increased by 25%, her total salary becomes Rs. 54,000. What is the salary of Raj?Solution
Let the salary of Raj and Simran be 3x and 5x respectively. Then, 5x × 125/100 = 54000 x = (54000×100)/(125×5) = Rs. 8640 ∴ Raj’s salary = 3x = 3 × 8640 = Rs. 25920
A motorcycle begins its journey at point X, traveling at a constant speed of 85 km/h. Meanwhile, a car starts at point X with a speed of 60 km/h and acc...
The speed of a car is 30% more than that of a bike. Both of them start from a same point. After travelling for 4 hours, the speed of the bike is increas...
A goods train and a passenger trains are running on parallel tracks in the same direction.The driver of the goods train observes that the passenger tra...
A train passes an electrical pole in 14 seconds and passes a platform 360 m long in 50 seconds. Find the length of the train.
If a car runs at 40 km/hr, it reaches its destination late by 14 minutes but if runs at 50 km/hr it is late by 8 minutes. What is the correct time for t...
Train A departs from Delhi to Patna at 8:15 AM, traveling at an average speed of 15 m/s. Meanwhile, Train B leaves Patna for Delhi at 10:35 AM, moving a...
A cyclist moving at (6/7) of his regular speed reaches his school 20 minutes late. Find the usual time he takes to reach school.
A boy goes to school with a speed of 80 km/h and comes back with a speed of 45 km/h. find his average speed?
A motor-cycle covers 100 km with a speed of 40 km/hr. find the speed of the motor-cycle for the next 100 km journey so that the average speed of the who...
- Meera noticed the sound of fireworks from a distance of 2.1 kilometers, reaching her after 24 seconds. Find out the speed of the sound.