Explanation

Given the quadratic equation:

mx² - 5x + n = 0

Sum of roots = -(-5)/m = 5/m

Product of roots = n/m

Given:

Sum of roots = Product of roots = 10

So, 5/m = 10 => m = 1/2

And n/m = 10 => n = 10m = 10 * (1/2) = 5

Explanation

قرآن حکیم (سورۃ الفرقان، آیت 67) میں فرمایا گیا

اور جب وہ خرچ کرتے ہیں تو نہ فضول خرچی کرتے ہیں اور نہ بخل، بلکہ ان دونوں کے درمیان اعتدال سے خرچ کرتے ہیں۔

مطلب یہ کہ رحمٰن کے بندے میانہ روی اختیار کرتے ہیں، اسراف نہیں کرتے۔

Explanation

Junaid starts with Rs. 600.

He gives one-fourth (1/4) to Awais:

Amount given to Awais = 600 * (1/4) = Rs. 150

Remaining amount = 600 - 150 = Rs. 450

He then gives half of the remaining amount to Hamza:

Amount given to Hamza = 450 * (1/2) = Rs. 225

Remaining amount = 450 - 225 = Rs. 225

The amount left with Junaid is:

Rs. 225

Explanation

A consonant cluster is a group of two or more consonants at the beginning of a word without any vowels between them.

In "Spring," the cluster "spr" is a consonant cluster.

Explanation

The surface area of a cuboid is given by:

2(lb + bh + hl)

Where l = 12cm, b = 8cm, h = 6cm

Surface area = 2(12_8 + 8_6 + 6*12)

= 2(96 + 48 + 72)

= 2(216)

= 432cm²

Explanation

The auditory nerve (also called the cochlear nerve) transmits sound signals from the ear to the brain.

It plays a direct role in the sense of hearing.

Explanation

The sentence asks a question, so it is an interrogative sentence.

Interrogative sentences usually end with a question mark and seek information.

Explanation

Dogs can hear a much wider range of frequencies than humans, typically from 50 Hz to 46,000 Hz.

Humans can generally hear sounds from 20 Hz to 20,000 Hz.

Explanation

Phytoplankton are microscopic plants that perform photosynthesis and form the base of the marine food chain.

They provide energy for small marine animals, which are then eaten by larger predators.

Explanation

A tissue is a group of similar cells working together to perform a specific function in an organism.

Examples include muscle tissue, nerve tissue, and plant vascular tissues like xylem and phloem.