Explanation

For n people sitting around a circular table:

Number of arrangements = (n − 1)!

For 10 people:

(10 − 1)! = 9! = 362,880

Last verified on 11-07-2026

Explanation

Explanation

A die has 6 equally likely outcomes: 1, 2, 3, 4, 5, 6.

The odd numbers are 1, 3, and 5, so there are 3 favorable outcomes.

Probability = Favorable outcomes ÷ Total outcomes = 3/6 = 1/2.

Last verified on 03-07-2026

Explanation

• A trade surplus occurs when a country's exports are greater than its imports.
• It means the country sells more goods and services to other countries than it buys from them.
• Trade surplus increases foreign exchange earnings and can strengthen the economy.

Last verified on 01-07-2026

Explanation

Median is the middle value after sorting numbers from smallest to biggest.

Given numbers: 1, 2, 3, 4, 5, 6, 2, 1, 7  

Step 1: Arrange in order: 1, 1, 2, 2, 3, 4, 5, 6, 7  

Step 2: Count total numbers = 9, which is odd  

Step 3: Middle position = (9 + 1) ÷ 2 = 5th position  

Step 4: 5th number in ordered list = 3

So median = 3

Last verified on 25-06-2026