Example 10 - Do the ratios 15 cm to 2 m and 10 sec to 3 minutes form


Transcript

Example 10 Do the ratios 15 cm to 2 m and 10 sec to 3 minutes form a proportion?2m = 2 × 100 cm = 200 cm 3 min = 3 × 60 sec = 180 sec 15 cm : 2 m = (15 𝑐𝑚)/(2 𝑚) = (15 𝑐𝑚)/(200 𝑐𝑚) = 15/200 = 3/40 = 3 : 40 10 sec : 3 min = (10 𝑐𝑚)/(3 𝑚𝑖𝑛) = (10 𝑠𝑐)/(180 𝑠𝑒𝑐) = 10/180 = 1/18 = 1 : 18 ∴ 15 cm : 2 m ≠ 10 sec : 3 min Thus, Given ratios are not in proportion

Ask a doubt
Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.