Explanation

75.5 is an average of the first 150 natural numbers or positive integers

Sum of first 150 numbers

1+ 2 + 3 +4………………147 + 149 + 150 = 11325

Find average
11325/150 = 75.5

Explanation

A man sold two scooters for 24000 each.

Find the cost price of one scooter at gain of 20% :-

C.P = (S.P × 100)/(100 + gain)

= (24000 × 100)/(100 + 20)

= 2400000/120

= 20000

Explanation

Continetal Drift theory was proposed by Alfred wegner in 1912.

It stated that continents have changed their position and initially there was only one big continent named Pangea.

Although he was unable to explain the force behind the drifting of continents.

Explanation

The Security Council has 15 members:

Five everlasting members with veto power:

1. China
2. France
3. Russian Federation
4. united kingdom of remarkable Britain and northerly ireland
5. USA

10 non-permanent contributors,

Five of them are elected every year by using the overall assembly for a two-year term at first

Set the sample for geographic representation as follows:

• five from African and Asian States
• 1 from japanese eu States
• 2 from Latin American States
• 2 from Western ecu and other States

Explanation

Morarji Desai is the only Indian who received the highest civilian awards from both India and Pakistan, the Bharat Ratna and Nishaan-e-Pakistan.

He was the 4th PM (1977-1979) of India.

He was the second deputy prime minister of India.

He was the first non-congress Indian Prime Minister.

Explanation

Blood cells are made in the bone marrow.

The bone marrow is the soft, spongy material in the center of the bones.

It produces about 95% of the body's blood cells.

Explanation

The 17th parallel line was the provisional demarcation line between North & South Vietnam.

It was established after the Geneva Accords in 1954 to separate the communist North and the anti-communist South.

Explanation

The 8th Amendment to the Constitution of the Islamic Republic of Pakistan (1973) allowed the President to unilaterally dissolve the National Assembly and elected governments.

This amendment significantly increased presidential powers during its time.

Explanation

Hamal Lake is situated in Qambar Shahdadkot District in Sindh, Pakistan, 58 km from Larkana city and 40 km from Qambar town.

Explanation

Clear nights are cooler than cloudy nights because of radiation. Here's why:

• On a clear night, the Earth's surface rapidly loses heat by radiating it into space, a process known as radiative heat loss. This causes the temperature to drop.
• On a cloudy night, the clouds act as an insulating blanket, trapping heat and preventing it from escaping into space. This reduces radiative heat loss and keeps the temperature warmer.