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  1. Chapter 8 Class 7 Comparing Quantities
  2. Serial order wise
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Ex 8.3, 11 If Meena gives an interest of Rs 45 for one year at 9% rate p.a. What is the sum she has borrowed? I = Rs 45 T = 1 year R = 9% p.a P = ? Now, I = ๐‘ƒ๐‘…๐‘‡/100 45 = (๐‘ƒ ร— 9 ร— 1)/100 45 ร— 100 = 9P 9P = 45 ร— 100 9P = 4500 P = 4500/9 P = Rs 500 So, she has borrowed Rs 500

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.