Find the geometric mean of 2, 4, 8, and 16.
A4
B4*sqrt(2)
C8
D16
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Archives: MCQs
Evaluate: cos(0°) + sin(90°) + tan(45°).
A1
B2
C3
D4
If the ratio of radii of two cylinders is 2:3 and their heights are in the ratio 5:3, find the ratio of their volumes.
A10 : 9
B20 : 27
C8 : 27
D15 : 16
A sum of money quadruples (becomes 4 times) in 15 years at simple interest. What is the rate of interest per annum?
A15%
B20%
C25%
D30%
What is the height of an equilateral triangle with side length 10 cm?
A5 cm
B5*sqrt(3) cm
C10*sqrt(3) cm
D15 cm
Find the value of k if (x – 2) is a factor of polynomial x^3 – 4x^2 + kx – 8.
A6
B8
C10
D12
A card is drawn from a well-shuffled deck of 52 cards. What is the probability that it is a Face Card (Jack, Queen, King)?
A1/13
B3/13
C4/13
D1/4
If a:b = 2:3, b:c = 4:5, and c:d = 6:7, find a:d.
A8 : 35
B16 : 35
C16 : 21
D24 : 35
The difference between CP and SP of an article is Rs. 240. If the profit is 20%, find the selling price.
ARs. 1,200
BRs. 1,440
CRs. 1,600
DRs. 1,800
A train running at 54 km/h crosses a man walking in the same direction at 6 km/h in 15 seconds. Find the length of the train.
A150 m
B200 m
C225 m
D250 m