Question

3. There are 114 teachers in a school of 3800 students. Find the ratio of the number of teachers to the number of students. Cost of a dozen pens is 168 and cost of 8 ball pens is 3 56. Find the ratio of the cost of a pen to the cost of a ball pen. 2.)​

Answer 1

Answer:

Cost of a dozen pens=Rs. 180

Cost of 1 pen 12=180/12=Rs. 15

Cost of 8 ball pens=Rs. 56

Cost of a ball pen=56/8=Rs. 7

Required ratio=15/7.

Answer 2

Answer:

• Teacher : Student

114 : 3800

3 : 100 is the ratio

• Pen : Ball pen

12 pen cost 168                                     8 ball pen costs 356

1 pen cost 14.                                              1 ball pen cost 44.5

              14 : 44.5

         28 : 89 is the ratio