Question
Download Solution PDFRs. 6400 invest in two schemes. First part gives 12% rate of interest and second part gives 20% rate of interest. Total interest after 2 years is Rs. 2176. Find the amount invest at 12% rate interest?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCalculation
Let x be amount at 12%, then (6400 − x) at 20%
Interest for 2 years: ⇒ x × 12% × 2 + (6400 − x) × 20% × 2 = 2176
⇒ 0.24x + 0.4(6400 − x) = 2176
⇒ 0.24x + 2560 − 0.4x = 2176
⇒ -0.16x = -384
⇒ x = 2400
Rs. 2400 at 12%
Last updated on Jun 17, 2025
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