Explanation

Looking at the pattern:

20 → 20 (no change)

20 → 19 (decrease by 1)

19 → 16 (decrease by 3)

16 → 17 (increase by 1)

17 → 13 (decrease by 4)

13 → 14 (increase by 1)

14 → 11 (decrease by 3)

Now, we continue the alternating pattern:

11 → 12 (increase by 1)

12 → 9 (decrease by 3)

The next two numbers are 10, 10.

Explanation

Total people = 100

Pepsi drinkers = 50

Coke drinkers = 40

Both = 20

People drinking Pepsi or Coke = Pepsi + Coke - Both

= 50 + 40 - 20

= 70

People drinking neither = Total - People drinking Pepsi or Coke

= 100 - 70

= 30

Explanation

Thomas Edison is often credited as a key figure in the development of motion picture technology due to his invention of the Kinetoscope, an early motion picture exhibition device.

His contributions in the late 19th century laid the groundwork for the commercial motion picture industry, making him a pivotal figure in film history.

Explanation

Topology is a branch of mathematics that studies the properties of space that are preserved under continuous transformations like stretching and bending, without tearing or gluing.

It focuses on concepts such as continuity, compactness, and connectedness.

Explanation

During intense exercise, lactic acid and other metabolic by-products accumulate in the body.

Rest helps the body recover and neutralize these substances, restoring normal function and reducing fatigue.

Explanation

A photoelectric cell works on the photoelectric effect, where light strikes a material and releases electrons.

These released electrons generate an electric current, converting light energy into electrical energy.

Explanation

Swinston is credited with developing the first tank design during World War I.

The tank's development involved multiple engineers and prototypes, with Winston Churchill playing a key role in its deployment

Explanation

1 meter = 100 centimeters.

1 centimeter = 10 millimeters.

Therefore, 1 meter = 100 × 10 = 1000 millimeters.

Explanation

The structure "Need you buy" is a correct form of a question using "need" for asking about necessity.

This is a formal or old-fashioned way of phrasing the question.

Explanation

The National Unionist Party was a political party based in the Punjab Province.

It was founded by Sir Fazli Husain, Sir Chotu Ram and Sir Sikandar Hayat Khanin 1923.

This party was enforced during the period of British rule in India.

In the 1937 Indian provincial elections, the Unionist Party soundly defeated the Muslim League in Punjab.

Unionist Party won 98 seats (out of 175 total), including 78 of the 89 Muslim seats,

while the Muslim League won only two

members of the party:

• Sir Sikandar Hayat Khan
• Sir Khizar Hayat Tiwana
• Sir Fazli Husain
• Sir Shahab-ud-Din
•  Muhammad Hussain Shah
• Sir Chhotu Ram