NAME: ____________ ROLL NO.: ____________ GRADE: IG 1 TOPIC : Number SUBJECT: MATHS TEACHER’S SIGNATURE: Asynchronous worksheet SUBJECT: TEACHER’S SIGNATURE: 1. The ratios of teachers: male students: female students in a school are 2: 17: 18. The total number of students is 665. Find the number of teachers. 2. An aunt gives a brother and sister $2000 to be divided in the ratio of their ages. If the girl is 13 years old and the boy 12 years old, how much will each get? 3. A man and a woman share a prize of $1000 between them in the ratio 1:4. The woman shares her part between herself, her mother and her daughter in the ratio 2:1:1. How much does her daughter receive? 4. The Illinois Department of Health reported that, for the years 1981 to 1992, when it tested a total of 357 horses for rabies, the ratio of horses with rabies to those without was 1 : 16. a How many of these horses had rabies? b What percentage of the horses did not have rabies? 5. Rewrite the following scales as ratios, as simply as possible. a) 1 cm to 4 km b) 4 cm to 5 km c) 2 cm to 5 km d) 4 cm to 1 km e) 5 cm to 1 km f) 2.5 cm to 1 km 1
