If Tk. 45,000 was invested in share when the price per share was Tk. 90 and Tk. 30,000 was invested when the price per share was Tk. 60, what was the average price per share purchased?

A Tk. 80

B Tk. 65

C Tk. 90

D Tk. 75

Correct Answer: Option D

If each share price is 90 tk than share number= 45000/90=500 If each share price is 60 tk than share number= 30000/60=500

So, average cost = (45000+30000)/1000 = 75 taka