Rajiv invests ₹ 9500 in a bank and earns interest of ₹ 665. If Deepak invests in the same bank, at the same rate of interest, for the same time period, an amount of ₹ 7,500, what will be the interest that he will earn?

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Solution

Let the interest earned by Deepak be ₹ $x$ .
(Rajiv’s principal) : (Deepak’s Principal) ∷ (Rajiv’s Interest) : (Deepak’s Interest)
$9500 : 7500 :: 665 : x$
$9500 x = 7500 \times 665$
$x = \frac{7500 \times 665}{9500} = ₹ 525$

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Rajiv invests ₹ 9500 in a bank and earns interest of ₹ 665. If Deepak invests in the same bank, at the same rate of interest, for the same time period, an amount of ₹ 7,500, what will be the interest that he will earn?

Let the interest earned by Deepak be ₹ x. (Rajiv’s principal) : (Deepak’s Principal) ∷ (Rajiv’s Interest) : (Deepak’s Interest) 9500:7500::665:x 9500 x=7500×665 x=7500×6659500=₹525

Let the interest earned by Deepak be ₹ $x$ .
(Rajiv’s principal) : (Deepak’s Principal) ∷ (Rajiv’s Interest) : (Deepak’s Interest)
$9500 : 7500 :: 665 : x$
$9500 x = 7500 \times 665$
$x = \frac{7500 \times 665}{9500} = ₹ 525$