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  1. Chapter 8 Class 7 Comparing Quantities
  2. Serial order wise
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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 = ๐‘ƒ๐‘…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 โˆด Rate of interest = 0.25% p.a

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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.