Explanation

When comparing two things, we use the comparative form of the adjective, which is "longer" for "long."

"Longest" is the superlative form used when comparing three or more things.

Explanation

Dimitri Mendeleev arranged the elements in order of increasing atomic mass, creating the first widely recognized periodic table.

His arrangement helped predict properties of undiscovered elements and left gaps for them in the table.

Explanation

File Manager helps users manage files and folders (copy, move, delete, etc.).

It is a utility program that supports the operating system's functionality.

Explanation

Annual salary = Rs. 6000 × 12 = Rs. 72,000

Taxable income after rebate = Rs. 72,000 - Rs. 50,000 = Rs. 22,000

Income tax = 5% of Rs. 22,000 = Rs. 1100

Explanation

This is an inverse proportion problem: More students → Less time.

20 × 8 = x × 5 → x = (20 × 8) / 5 = 32 students.

Explanation

Devices like mouse, printer, and network adapters need specific drivers to communicate with the operating system.

Without drivers, the OS can't recognize or control these devices properly.

Explanation

اچھا گھوڑا دو الفاظ پر مشتمل ہے: ایک صفت (اچھا) اور ایک موصوف (گھوڑا)۔

جب صفت اور موصوف مل کر مکمل جملہ نہ بنائیں تو اسے مرکب ناقص کہتے ہیں۔

Explanation

SQL is the specific language used to create tables, store, retrieve, and update data in a relational database.

It is designed for managing and manipulating structured data in relational databases.

Explanation

196/4 = 49 students per row.

49 * 11 = 539.

Explanation

To find the median, we need to arrange the data in order:

3, 6, 8, 9, 10, 12, 14, 14, 16

Since there are 9 numbers (an odd number), the median is the middle value, which is the 5th number:

The median is 10.