Question

find the ratio of each of the following in the simplest form-
2.1m to 1.2m
60 paiseto 4 rupees
15 mm to 2 cm
express the following in the simplest form-
1/15 :1/25
in a class there are 30 boys and 25girls. find the ratio of the number of
1)boys to that of girls
2)girls to that of total number of students
3)boys to that of total number of students

Answer 1

2.1cm to 1.2cm=2.1cm/1.2cm=21/12=7:4 60paisa to 4rupees, 1rupee=100paisa =>4rupee=4*100=400paisa =>60paisa/400paisa=3:20 15mm to2cm, 1cm=10mm,therefore,2cm=2*10=20mm So,15mm/20mm=3:2 1/15:1/25=1/15/1/25, taking reciprocal it will be, 1/15*25/1=5/3=5:3 Total no. Of students=30+25=55 1)30/25=6/5=6:5 2)25/55=5/11=5:11 3)30/55=6/11=6:11 Hope so it has helped you.

Answer 2

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