Question
The average salary of 36 employees (
Teachers+principals) in a School is Rs.10,375. A Principal in the School receives a salary that is 125% higher than that of a Teacher. Given that the number of Principals in the School is 40% more than the number of Teachers calculate the total salary of all the Teachers in the School.Solution
We can say that Let the number of Teachers in the School be ‘t’. So, the number of Principal in the School = 1.4t = 36 – t 2.4t = 36 t = 15 So, there are 15 Teachers and 21 Principal in the School Let the salary of a Teachers in the School be Rs. ‘s’. So, the salary of an Principal in the Scchool = Rs.2.25s According to question: 15s + 2.25s × 21 = 36 × 10375 15s + 47.25s = 373500 62.25s = 373500 s = 6000 So the salary of all the Teachers in the School together = 15 × 6000 = Rs.90,000
A train 175 m long running at 54 km/hr takes 40 seconds to cross a bridge. The length of the bridge is
A train passes 150 m long platform in 10 seconds and a man standing on the platform in 8 seconds. Find the speed of the train?
Ratio of the lengths of two trains ‘X’ and ‘Y’ is 3:4 respectively and the ratio of time taken by them to cross a pole is 1:2 respectively. If s...
A train travelling with a speed of 54 km/h can cross a pole in 6 seconds. Find the time taken by the train to cross a 180 metres long platform if the sp...
- Length of a train, whose speed is 54 km/h, is 270 metres. Find the time taken (in seconds) by train to cross a bridge of length 330 metres.
A man running at the speed of 5 kmph was over taken by the train moving with the speed of 77 kmph in 22 seconds. Find the length of train.
Train A, moving at 90 km/h, crosses a pole in 8 seconds. Find the time it takes to cross another train of equal length, coming from the opposite directi...
Two trains running on parallel track with lengths 140 m and 40 m respectively. When travelling in opposite directions they are observed to pass each oth...
A train takes 7 seconds more to cross a 210-metre-long platform than it takes to cross a pole. If a car running at the speed of 38 m/s takes 70 seconds ...
Train P crosses a 350-meter-long platform in 42 seconds. It can cross a stationary pole in 14 seconds. What is the time taken by ...