At a new index of 12 shares, the shares of HBL, Niposys and Brilliance have a we

Question

At a new index of 12 shares, the shares of HBL, Niposys and Brilliance have a weightage of

7 %

13 %

and

1 %

respectively. What is the increase in the price of the other shares, if the rise in these three is

9 %

10 %

and

4 %

, when the index rises by

6 %

Options:

A . 4%

B . 3.4%

C . 6%

D . None of these

Answer: Option C
:
C
Lets say the value of the index = 100
HBL = 7
Niposys = 13
Brilliance = 1
Others = 100 - 21 = 79
Increased index value = 106
Increased individual values
HBL = 1.09

\times

7=7.63
Niposys = 1.1

\times

13 =14.3
Brilliance = 1.04

\times

1 = 1.04
Total = 22.97
Others = 106 - 22.97 = 83.03
Increase

= \frac{83.03 - 79}{79} \times 100 = 5.1 %

(approx)

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