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Main Subjects MCQs With Answers
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Which gas is used in the manufacturing of soft drinks and carbonated beverages?
AOxygen
BCarbon dioxide
CNitrogen
DHydrogen
Why does a swimming pool appear less deep than it actually is?
AReflection of light
BRefraction of light
CDiffraction of light
DAbsorption of light
Sound travels fastest in which of the following media?
AVacuum
BAir
CWater
DSteel
The principle behind the working of a hydraulic lift is based on:
AArchimedes' Principle
BBernoulli's Principle
CPascal's Law
DBoyle's Law
The diagonal of a square field is 20 meters. What is the area of the square field?
A100 m²
B200 m²
C282 m²
D400 m²
Solve for x in the quadratic equation x^2 – 7x + 12 = 0.
Ax = 2, 5
Bx = 3, 4
Cx = -3, -4
Dx = 1, 12
If 25% of a number is equal to 35% of 150, what is the number?
A210
B220
C240
D250
If a car covers a distance of 360 km in 4 hours, what is its speed in meters per second (m/s)?
A20 m/s
B25 m/s
C30 m/s
D90 m/s
A shopkeeper sells an article for Rs. 480 at a loss of 20%. At what price should he sell it to make a profit of 20%?
ARs. 600
BRs. 640
CRs. 720
DRs. 800
The average age of a group of 5 friends is 22 years. If a new friend joins them, the average age becomes 24 years. What is the age of the new friend?
A30 years
B32 years
C34 years
D36 years