# Ex 8.3, 10 - Chapter 8 Class 7 Comparing Quantities

Last updated at Nov. 6, 2018 by Teachoo

Last updated at Nov. 6, 2018 by Teachoo

Transcript

Ex 8.3, 10 What rate gives Rs 280 as interest on a sum of Rs 56,000 in 2 years? I = Rs 280 P = Rs 56,000 T = 2 years R = ? Now, I = ๐๐ ๐/100 280 = (56000 ร ๐ ร 2)/100 280 = 560 ร 2R 560 ร 2R = 280 R = 280/(560 ร 2) R = 140/560 R = 14/56 R = 14/56 R = 7/28 R = 1/4 R = 0.25 โด Rate of interest = 0.25% p.a

Ex 8.3

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.