Explanation

Given:

Selling price (SP) = Rs. 8413

Loss percentage = 6%

Let's denote the cost price as CP.

Since the shopkeeper loses 6%, the selling price is 94% of the cost price (100% - 6% = 94%).

SP = 0.94 × CP

8413 = 0.94 × CP

CP = 8413 / 0.94

CP = 8950

Explanation

Given:

Radius (r) = 13 cm

Distance from center to chord (d) = 5 cm

Let's draw a perpendicular from the center to the chord. This will bisect the chord.

Using the Pythagorean theorem:

r² = d² + (half chord)²

13² = 5² + (half chord)²

169 = 25 + (half chord)²

(half chord)² = 169 - 25

= 144

half chord = √144

= 12 cm

Length of chord = 2 × half chord

= 2 × 12

= 24 cm

Explanation

Ascariasis spreads when people ingest eggs from contaminated food, water, or soil.

It remains common in areas with poor sanitation and hygiene practices.

Explanation

"Tahir" is a proper noun → should be capitalized.

Possession is shown with apostrophe + s → Tahir’s car is correct.

Explanation

Direct Speech:

Ali said, “I visited Lahore last week.”

Rules for Indirect (Reported) Speech:

Simple past ("visited") → changes to past perfect ("had visited")

Time expression "last week" → changes to "the previous week"

Pronoun "I" becomes "he" (referring to Ali)

Correct Indirect Speech:

Ali said that he had visited Lahore the previous week.

Explanation

A standard score (like a z-score or IQ score) indicates how far a value is from the mean, based on the standard deviation.

It is often presented on a scale with a mean of 100 and helps in comparing scores across different tests or populations.

Explanation

Feedback is a supportive communication tool in assessment that encourages growth, trust, and collaboration between teacher and learner.

It is typically non-threatening and focuses on improvement, not judgment, making it key to effective learning.

Explanation

Fever is a symptom, not a disease—it indicates the body’s response to infection or illness.

It reflects an underlying condition like viral or bacterial infections, signaling the immune system is active.

Explanation

A probability greater than 0.5 but less than 1 indicates that the event is more likely than not to occur.

A probability of 1 means certainty, so anything between 0.5 and 1 leans toward happening.

Explanation

The first recorded Pashto poem is attributed to Amir Kror Suri.

It is thought to have been written in the 8th century CE (2nd Hijri century).