- 150
- 315
- 375
- 420
- b
-
Let Book contain=X Pages
A read 3/7 of X=(3/7)*X=3X/7
Remaining Pages=X-3X/7=(7X-3X)/7=4X/7
A read remaining Pages=3/4 of 4X/7=3/4*4X/7=12X/28
A left Pages=4X/7-12X/28=(16X-12X)/28=4X/28=X/7
Now X/7=45=
X=45*7=315
2022
All Solved Past Papers 2022 are included in this section of ETEST Academy’s Website. All Solved MCQs of 2022 of All Departments. All Posts and All Testing Services are also included in this section.
The heaviest particle in atom is:
- Neutron
- Proton
- Electron
- None of these
- a
-
The lightest particle in atom is Electron.
Speed of light is:
- 200,000 Km/Sec
- 2,50,000 Km/Sec
- 300,000 Km/Sec
- 3,50,000 Km/Sec
- c
Charles Babbage is famous for his work in:
- Computer
- Psychology
- Microbiology
- Chemistry
- a
-
Charles Babbage is founder of Computer.
He invented first Mechanical Computer during 1822.
Pakistan exports cotton yarn to country:
- US
- UK
- France
- None of these
- a
Gregor Mendel is famous for:
- Anatomy Research
- Cell Theory
- Genetics
- None of these
- c
-
Gregor Mendel was an Austrian Scientist.
Equator is the one of the lines of:
- Latitude
- South Pole
- Longitude
- None of these
- a
Fear of trees is called:
- Pyrophobia
- Hydrophobia
- Ecophobia
- Dendrophobia
- d
-
Pyrophobia is fear of fire.
Hydrophobia / Aquaphobia is fear of water.
Ecophobia is fear of natural environment.
The earth is the ……..planet from the sun.
- Second
- Third
- Fourth
- Fifth
- b
-
Earth is at distance of 150 Million Km from Sun.
Percentage of Oxygen in air on Earth is:
- 21%
- 22%
- 39%
- 45%
- a
-
Oxygen 20.94%
Nitrogen 78.09%
Argon 0.93%
Carbon Dioxide 0.04%