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Question

Mamta and Sonia invested equal amounts in buying shares of two different companies. Mamta bought shares of Hindalco paying a dividend of 14% on its 125 share available in the market for 140, while Sonia bought shares of HLL paying a dividend of 13% on its 300 share available in the market for 260. If Sonia's annual income is 1820 more than that of Mamta, then find the amount invested by each of them.


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Solution

Step 1: Given Data:

Face value of Hindalco, F1=125

Market value of Hindalco, M1=140

Rate of dividend of Hindalco, D1=14%

Face value of HLL, F2=300

Market value of HLL, M2=260

Rate of dividend of HLL, D2=13%

Sonia's annual income - Mamta's annual income=1820

Step 2: Calculate the income for one share of Hindalco

Income=Rateofdividend100×Facevalue

I1=D1100×F1=14100×125=17.5

Step 3: Calculate the income for one share of HLL

Income=Rateofdividend100×Facevalue

I2=D2100×F2=13100×300=39

Step 4: Calculate the annual income from Hindalco

As Mamta and Sonia invested equally in both the companies, let money invested in each company y

Noofshares=InvestmentMarketvalue=yM1=y140shares

Totalannualincome=Numberofshares×Incomefromoneshare

A1=y140×17.5incomecalculatedinstep2A1=y8

Step 5: Calculate the annual income from HLL

Noofshares=InvestmentMarketvalue=yM2=y260shares

Totalannualincome=Numberofshares×Incomefromoneshare

A2=y260×39incomecalculatedinstep3A2=3y20

Step 6: Calculate the investment done by Mamta and Sonia

(ii) It is given that the difference between the returns from both the companies is 1820

Differenceinannualincome=Sonia'sannualincome-Mamta'sannualincome

1820=A2-A11820=3y20-y81820=3y×8-y×201601820=24y-20y1601820=4y1601820=y40y=1820×40y=72800

Final Answer: Hence, the amount invested by each of them is 72800.


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