Explanation

"Its" is the possessive form meaning belonging to the dog.

Example: The dog bites its paws.

Explanation

⇒ Number of girls = 20

⇒ Number of boys = 15

The ratio of girls to boys: ⇒ Girls: Boys = 20:15

⇒ Girls: Boys = 20 ÷ 5: 15 ÷ 5 ⇒ Girls: Boys = 4:3

Explanation

Let's break it down:

A = x% of y = (x/100)y = xy/100

B = y% of x = (y/100)x = yx/100

Since xy = yx, A = B.

Explanation

"Delighted" is the past participle used as an adjective to show Ali’s strong feeling of happiness.

Delighted means خوش

Explanation

Explanation

On 23 January 2023, a national grid frequency fluctuation caused a massive blackout affecting 220 million people in Pakistan.

The outage was due to faulty grid synchronization during energy-saving shutdowns, leading to unstable frequency (~50.75 Hz) and a 12-hour power collapse.

Explanation

5, _, _, _, 25

There are 5 terms. Let's find the common difference:

d = 25-5/4 = 20/4 = 5

The sequence is:

5 + 5 = 10

10 + 5 = 15

15 + 5 = 20

20 + 5 = 25

The sequence is 5, 10, 15, 20, 25

The second arithmetic mean is 15.

Explanation

Given:

• Speed from A to B = 40 km/h

• Speed from B to A = 40 km/h + 50% of 40 km/h = 40 + 20 = 60 km/h

Find:

Average speed for the whole journey (both ways).

Formula for average speed when distance is the same but speeds differ:

Plug in values:

=4800/100

=48 km/h

Explanation

 The idiom "stabbed in the back" means to be betrayed by someone you trusted, often in a harmful or unexpected way

Explanation

DVR stands for Digital Video Recorders

They are devices used to record and store video content, as explained by Infiniti Electro-Optics.