Explanation

To find the average wage per day:

Total daily wages:

Male workers: 20 × Rs. 25 = Rs. 500

Female workers: 15 × Rs. 20 = Rs. 300

Teen workers: 5 × Rs. 8 = Rs. 40

Total daily wages = Rs. 500 + Rs. 300 + Rs. 40 = Rs. 840

Total number of workers = 20 + 15 + 5 = 40

Average wage per day = Total daily wages / Total number of workers

= Rs. 840 / 40

= Rs. 21

Explanation

Let's denote the two numbers as x and y, where x is the smaller number.

Given:

x + y = 16 ... (1)

xy = 63 ... (2)

From (1), y = 16 - x. Substituting into (2):

x(16 - x) = 63

16x - x² = 63

x² - 16x + 63 = 0

Factoring the quadratic equation:

(x - 7)(x - 9) = 0

x = 7 or x = 9

Since x is the smaller number, x = 7.

Explanation

Direct: "I am going out tonight," Kaunain said.

I → she

am going → was going (present continuous → past continuous)

tonight → that night

So,

Indirect: Kaunain said that she was going out that night.

Explanation

Predict means مستقبل میں علم یا استدلال کی بنیاد پر پیش گوئی کرنے یا توقع کرنے کے لئے

Expect means مستقبل میں علم یا استدلال کی بنیاد پر پیش گوئی کرنے یا توقع کرنے کے لئے

Foretell means پیش گوئی

Explanation

Let's denote the number of captains as C and the number of soldiers as S.

We know that C + S = 1530.

For every 14 soldiers, there is 1 captain, so S = 14C.

Substitute S = 14C into the first equation:

C + 14C = 1530

15C = 1530

Divide both sides by 15:

C = 102

Explanation

Let's denote the three consecutive even numbers as x, x + 2, and x + 4.

Given:

x + (x + 2) + (x + 4) = 72

Combine like terms:

3x + 6 = 72

Subtract 6 from both sides:

3x = 66

Divide by 3:

x = 22

The smallest number is 22.

Explanation

Brother is the male counterpart of Sister.

Likewise, Niece is the female counterpart of Nephew.

So the best comparison is:

Brother : Sister :: Niece : Nephew

Explanation

Salalah, in Oman, is known as the "Land of Authenticity"

Due to its rich cultural heritage, traditions, and historical significance.

It is famous for its Khareef (monsoon) season, frankincense trees, and ancient ruins that reflect authentic Arabian culture.

Explanation

Active voice: The child could not have done this mischief.

In passive voice, structure:

could not have + been + past participle

So: "This mischief could not have been done by the child." is correct.

Explanation

A QR Code reader scans and sends data into the computer or mobile device.

Since it inputs information, it is classified as an input device.