Please solve the 10th question.
Please do not provide any link.
Q.10. A man invested Rs. 45,000 in 15 % Rs. 100 shares quoted at Rs. 125. When the M. V. of these shares rose to Rs. 140, he sold some shares, just enough to raise Rs. 8,400. Calculate :
(i) the number of shares he still holds;
(ii) the dividend due to him on these remaining shares.

Points to note:
1)Rs 100 was the initial value of the share but it has no bearing for the sum since market value is what they purchase it for, so selling and buying of shares is done at Market Value.
2) Dividend is paid on the initial value  Rs 100  and not market valuei.e. 15% of 100 15 Rs per share

Rs 45000 was invested to buy shares with MV(Market Value) of Rs 125 each
so shares bought i s 45000/125 = 360

Shares sold worth Rs 8400 at MV of Rs 140
so number of shares sold = 8400/140 = 60

1) Shares remaining = 360 - 60 = 300


2) Dividend is thus 15%* 100 * 300  =  Rs 4500 # Divident % * Initial Value per share * Number of shares