Advertisements
Advertisements
Question
Many schools have a recommended students-teacher ratio as 35:1. Next year, school expects an increase in enrolment by 280 students. How many new teachers will they have to appoint to maintain the students-teacher ratio?
Solution
Students-teacher ratio = 35:1
It show every 35 students-one teacher should available in the school.
In the school, number of students increases = 280 students
The number of teachers required for 280 students = `280/35` = 8 teachers
APPEARS IN
RELATED QUESTIONS
Complite the following table given that x varies directly as y .
x | 2.5 | ... | ... | 15 |
y | 5 | 8 | 12 | ... |
Complite the following table given that x varies directly as y .
x | 5 | ... | 10 | 35 | 25 | ... |
y | 8 | 12 | ... | ... | ... | 32 |
Anupama takes 125 minutes in walking a distance of 100 metre. What distance would she cover in 315 minutes?
A and B can do a piece of work in 20 days and B in 15 days. They work together for 2 days and then A goes away. In how many days will B finish the remaining work?
Both x and y vary directly with each other and when x is 10, y is 14, which of the following is not a possible pair of corresponding values of x and y?
If Naresh walks 250 steps to cover a distance of 200 metres, find the distance travelled in 350 steps.
A swimming pool can be filled in 4 hours by 8 pumps of the same type. How many such pumps are required if the pool is to be filled in `2 2/3` hours?
The cost of 27 kg of iron is Rs 1,080, what will be the cost of 120 kg of iron of the same quality?
Ravi starts for his school at 8:20 a.m. on his bicycle. If he travels at a speed of 10 km/h, then he reaches his school late by 8 minutes but on travelling at 16 km/h he reaches the school 10 minutes early. At what time does the school start?
A water tank casts a shadow 21 m long. A tree of height 9.5 m casts a shadow 8 m long at the same time. The lengths of the shadows are directly proportional to their heights. Find the height of the tank.