English

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 - Mathematics

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?

Sum
Advertisements

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

shaalaa.com
  Is there an error in this question or solution?
Chapter 10: Direct and Inverse Proportions - Exercise [Page 329]

APPEARS IN

NCERT Exemplar Mathematics [English] Class 8
Chapter 10 Direct and Inverse Proportions
Exercise | Q 104. | Page 329

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

A 5 m 60 cm high vertical pole casts a shadow 3 m 20 cm long. Find at the same time the length of the shadow cast by another pole 10 m 50 cm high.


Rohit bought 12 registers for Rs 156, find the cost of 7 such registers.

 

A and B can finish a work in 20 days. A alone can do \[\frac{1}{5}\]  th of the work in 12 days. In how many days can B alone do it?

 
 

A can do a piece of work in 40 days and B in 45 days. They work together for 10 days and then B goes away. In how many days will A finish the remaining work? 


A pipe can fill a cistern in 10 hours. Due to a leak in the bottom it is filled in 12 hours. When the cistern is full, in how much time will it be emptied by the leak?


For 9 cows, 13 kg 500 g of food supplements are required every day. In the same proportion, how much will be needed for 12 cows?


A birthday party is arranged in third floor of a hotel. 120 people take 8 trips in a lift to go to the party hall. If 12 trips were made how many people would have attended the party?


If the distance travelled by a rickshaw in one hour is 10 km, then the distance travelled by the same rickshaw with the same speed in one minute is ______.


Write whether the following statement vary directly, vary inversely with each other, or neither of the two.

The quantity of rice and its cost.


Kusum always forgets how to convert miles to kilometres and back again. However she remembers that her car’s speedometer shows both miles and kilometres. She knows that travelling 50 miles per hour is same as travelling 80 kilometres per hour. To cover a distance of 200 km, how many miles Kusum would have to go?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×