If standard deviation of a dataset is 4, what is its variance?
A2
B8
C16
D64
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Archives: MCQs
Find the simple interest rate per annum if Rs. 500 yields Rs. 100 interest in 4 years.
A4%
B5%
C6%
D8%
Convert 0.375 into a fraction in its simplest form.
A3/8
B3/5
C7/16
D11/30
A sphere has a radius of 3 cm. What is its volume in terms of pi?
A12*pi cm³
B36*pi cm³
C48*pi cm³
D72*pi cm³
A batsman scores 80 runs in his 10th innings and increases his average by 4 runs. What is his new average?
A40
B44
C48
D52
How many subsets does a set containing 4 elements have?
A8
B12
C16
D32
The complement of an angle measuring 35° is:
A45°
B55°
C145°
D155°
A sum of Rs. 1000 is invested at 10% compound interest per annum for 2 years. Find the compound interest.
ARs. 200
BRs. 210
CRs. 220
DRs. 250
What is the angle between the hour hand and minute hand of a clock at 3:00?
A45°
B60°
C90°
D120°
Find the unit digit of 3^45.
A1
B3
C7
D9