Explanation

We use the relation:

Product of two numbers = LCM × HCF

Given:

Product = 2500

LCM = 125

So,

2500 = 125 × HCF

⇒ HCF = 2500 ÷ 125 = 20

Explanation

Let's denote the total number of books as x.

Hadith books = 2/5 × x = 2x/5

Remaining books = x - 2x/5 = 3x/5

Mathematics books = 3/4 × 3x/5 = 9x/20

Books on other subjects = 3x/5 - 9x/20

= (12x - 9x)/20

= 3x/20

Given that the number of books on other subjects is 642:

3x/20 = 642

x = 642 × 20/3

x = 4280

Explanation

Edward Thorndike introduced the Laws of Learning, particularly the Law of Effect, which states that behaviors followed by satisfying outcomes are more likely to be repeated.

His work laid the foundation for behaviorist theories in psychology and education, focusing on how animals and humans learn through trial and error.

Explanation

Normal fasting glucose concentration in blood plasma is ~70–100 mg/dL.

It translates to ~0.1% (100 mg/dL = 0.1 g/dL = 0.1%).

Explanation

حسین کا ہم قافیہ لفظ "جبین" ہے، جو کہ دونوں الفاظ ایک ہی آواز کے ساتھ ختم ہوتے ہیں۔

جبین کا مطلب پیشانی یا ماتھا ہوتا ہے۔

Explanation

Explanation

A decade consists of 10 years.

It is a period of ten consecutive years.

Explanation

The Isthmus of Panama connects North America and South America.

It is a narrow strip of land that also separates the Pacific Ocean from the Atlantic Ocean via the Panama Canal.

Explanation

Natural Number: The number 1 is considered a natural number (used for counting: 1, 2, 3, ...).

Explanation

Pictorial means تصویر