A person buys 120 shares at a nominal value of Rs 40 each, which he sells at Rs 42.50 each. Find his profit and profit percent.
A person buys 240 shares at nominal value of Rs 40 each, which he sells out at Rs 47 each. Find his profit and profit percent.
A man invests Rs 800 in buying Rs 5 shares and when they are selling at a premium of Rs 1.15, he sells all the shares. Find his profit and profit percent.