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Rohit invested in two types of shares, P and Q, of a company. He purchased P at `x%` discount and Q at `x%` premium. If the total market value of each is equal, find the rate of effective discount (in per cent).A. `0.1%`B. `(x^(2))/(400)%`C. `(x^(2))/(200)%`D. `(x^(2))/(100)%` |
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Answer» Correct Answer - D (i) `"Effective discount"=("Total discount")/("Total market value")xx100` (ii) Let the market value of each share be m. (iii) `FV_(1)=(100m)/(100+x)and FV_(2)=(100m)/(100-x)` (iv) Find the total face value which is less than the total market value. (v) Effective discount. `=("(Total FV"-"Total MV)")/("Total FV")xx100`. |
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