Question
Ajay invested Rs.a in SI at 9% rate of interest per
annum for 10 years. Vishal invested the same amount in SI at 4% rate of interest per annum for 5 years and the difference between the interest obtained by Ajay and Vishal is Rs.1400. Find the amount invested by Vishal.Solution
According to question, => (a × 9 × 10)/100 – (a × 4 × 5)/100 = 1400 => 90a/100 – 20a/100 = 1400 => 70a/100 = 1400 => a = Rs.2000
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