Explanation

1. Pipe A fills the tank in 15 minutes (rate = $\frac{1}{15}$ per minute).

2. Pipe B fills the tank in 20 minutes (rate = $\frac{1}{20}$ per minute).

3. Combined rate: $\frac{1}{15}+\frac{1}{20}=\frac{7}{60}$ per minute.

4. Time taken together: $\frac{1}{\frac{7}{60}}=\frac{60}{7}$ minutes.

Explanation

Chionophobia refers to the fear of snow. 

The word "chionophobia" comes from the Greek word "chioni" which means snow.

So, someone with chionophobia experiences extreme anxiety or panic when they encounter snow or even think about it.

Explanation

Belgium is often referred to as the "Crossroads of Western Europe."

Its central location and extensive transportation networks (roads, railways, and waterways).

This make it a key hub for trade and travel in Europe.

Explanation

Venezuela Capital is Caracas.

Venezuela Currency is Bolivar Fuerte.

Venezuela official language is Spanish.

Venezuela located is in Continent South America.

Venezuela Primary Religion is Christianity.

Venezuela Head of Govt. is President – Juan Guaidó.

Venezuela Parliament called .

Tricks for Remember

RK13-12-2022

Explanation

Explanation

Mica is a material that is a good conductor of heat but a poor conductor of electricity.

Due to its insulating properties, mica is commonly used in electrical and thermal applications.

Such as in insulating electrical equipment.

Explanation

The Ionosphere reflects and refracts radio waves, enabling long-distance communication.

It plays a crucial role in radio transmission and satellite communication.

Explanation

The term Dactyloscopy refers to the identification of fingerprints.

It is a scientific method used in forensic science.

It is used to analyze and compare fingerprints for identification purposes.

Explanation

Explanation

To find the principal (P), use the formula:

Simple Interest (SI) = (P × Rate × Time) / 100

Rearrange the formula to solve for P:

P = (SI × 100) / (Rate × Time)

P = (84 × 100) / (4 × 2)

P = 1050