Identify the ratio in which shares are issued on Prorata basis

The correct answer/option is 10:13.

Step-by-Step Explanation:

Pro-rata allotment of shares occurs when a company receives applications for more shares than it has offered for public subscription (over-subscription), and it decides to allot shares to the applicants proportionally rather than rejecting any applications outright.

The pro-rata allotment ratio is calculated as:
Pro-rata Ratio = Shares Allotted : Shares Applied

In the given options, we can check the relationship between the applied and allotted shares. Let us simplify the options to understand their relationship:
If we look at the option 10:13, it represents that for every 13 shares applied for by investors, the company allot 10 shares to them.
Since shares allotted (10) are less than the shares applied for (13), it indicates a case of over-subscription where a pro-rata basis allotment is applied.

Therefore, the pro-rata ratio in which the shares are issued is 10:13.