Explanation

To solve this problem according to Islamic inheritance law, we need to follow these steps:

Step 1: Calculate the net estate

First, we subtract the debt and burial expenses from the total property:

Total property: Rs. 640,000

Debt: Rs. 40,000

Burial expenses: Rs. 5,000

Net estate = Rs. 640,000 - Rs. 40,000 - Rs. 5,000

Net estate = Rs. 595,000

Step 2: Distribution according to Islamic Law

According to Islamic inheritance rules (under Sunni law):

The widow is entitled to 1/8 of the estate.

The remaining estate is distributed among the children, where:

Each son gets twice the share of a daughter.

Widow's share:

The widow gets 1/8 of Rs. 595,000:

Widow’s share =1/8×595,000=74,75

Remaining estate:

The remaining estate after the widow’s share is:

$$595,000-74,375=520,625$$

Distribution among the children:

The ratio of distribution between sons and daughters is 2:1.

So, the total shares for 2 sons and 1 daughter will be:

• Each son gets 2 shares, and the daughter gets 1 share.
• Total shares = 2 (for 1st son) + 2 (for 2nd son) + 1 (for the daughter) = 5 shares.