Explanation

Explanation

Given information:

1. The average of the first three numbers (A, B, C) is 15

   $$frac{A + B + C}{3} = 15$$ $$A + B + C = 45$$

2. The average of the last three numbers (B, C, D) is 16

   $$frac{B + C + D}{3} = 16$$ $$B + C + D = 48$$

3. The last number (D) is 19

   $$B + C + 19 = 48$$ $$B + C = 29$$

Finding A

We already have:

$$A + B + C = 45$$

Substituting $B + C = 29$:

$$A + 29 = 45$$$$A = 45 - 29$$ $$A = 16$$

Explanation

• A lake starts freezing because of the cold atmosphere. It will first freeze At the top surface
• ***
• concept:
• when the water freezes to ice, the ice becomes significantly less dense than the water and continues to float on the lake's surface.
• Below 4° Celsius, water becomes less dense as it gets colder, causing water to freeze to float to the top.
  
  

Explanation

Silicon is not the conductor

***
Aluminum and gold are metals so they are good conductors of electricity.

Now graphite is an allotropic form of carbon and is the only nonmetal that can conduct electricity.

Silicon is a semiconductor. 

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VU LDC UDC FIA PAPER 27-12-2021

Explanation



MIRTH (خوشی، مسرت، شادمانی)

Merriment – (خوشی، تفریح)

Explanation

Blood does not coagulate inside the body due to the presence of Heparin.

Heparin is an anticoagulant that prevents the formation of blood clots.

It is also used before surgery to reduce the risk of blood clots.

Explanation

The German Bundesrat is a legislative body that represents the sixteen Lander of Germany at the federal level.

The Bundesrat meets at the former Prussian House of Lords in Berlin.

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VU CBT FIA PAPER 26-12-2021

Explanation

• Frederick Sanger was an English biochemist who won the Nobel Prize in Chemistry twice.
• Frederick Sanger won first Nobel Prize in 1958 and second in 1980.
• Frederick Sanger died in 2013 in England.

Explanation

• Suez Canal is considered to be the greatest shipping Canal of the world.
• Since its completion in 1869, it has become one of the world's most heavily used shipping lanes

Explanation

Excessive : more than is necessary, normal, or desirable; immoderate.

unconscionable

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