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Saurav Invested 10%, 30% and 40% of His Savings in Buying Shares of 3 Different Companies A, B and C Which Declared Dividends of 12%, 15% and 16% Respectively. - Mathematics

Sum

Saurav invested 10%, 30% and 40% of his savings in buying shares of 3 different companies A, B and C which declared dividends of 12%, 15% and 16% respectively. If Saurav's total income from dividends is Rs 3,025, find his savings and the amount invested in each company.

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Solution

Let total savings be x.

Investment in company A = 10 % of x = `10/100 xx x = x/10`

Investment in company B = 30 % of x = `30/100 xx x = (3 x)/10 `

Investment in company C = 40 % of x = `40/100 xx x = (4 x)/10 = (2 x)/5`

Dividend given by company A = 12 %  of `x/10`

`(12 xx x)/(100 xx 10) = 0.012  x` ........(i)

Dividend given by company B =15 %  of `(3 x)/10`

=`(15 xx 3 x)/(100 xx 10) = 0.045  x` ...............(ii)

Dividend given by company C = 16 % of `(2 x)/5`

`(16 xx 2 x)/(100 xx 5) = 0.064  x`  ..............(iii)

(i) + (ii) +(iii) =Rs 3,025 ........... (given) 

(0.012 + 0.045 + 0.064)x = Rs 3,025 

0.12 l x=Rs 3,025 

x = Rs `3025/0.121` = Rs 25000

Hence, Saurav's savings = Rs 25,000 

Investment in company A = Rs `x / 10` = Rs `25000/10` = Rs 2500

Investment in company B = Rs `(3 x) / 10` = Rs `75000/10` = Rs 7500

Investment in company C = Rs `(2 x) / 5` = Rs `50000/5` = Rs 10000

Concept: Shares and Dividends Examples
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APPEARS IN

Frank ICSE Class 10 Mathematics Part 2
Chapter 4 Shares and Dividends
Exercise 4.2 | Q 1 | Page 63
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