Solve for x: sqrt(5x – 4) = 6.
A6
B7
C8
D9
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Archives: MCQs
Find the mode of the following data: 4, 7, 5, 4, 8, 4, 9, 7, 5, 4.
A4
B5
C7
D8
If 20% of a number is added to 80, the result is the number itself. What is the number?
A90
B100
C110
D120
Simplify: (0.75 * 0.75 * 0.75 – 0.25 * 0.25 * 0.25) / (0.75 * 0.75 + 0.75 * 0.25 + 0.25 * 0.25).
A0.25
B0.50
C0.75
D1.00
A fair die is thrown once. What is the probability of getting a prime number?
A1/6
B1/3
C1/2
D2/3
The circumference of a circle exceeds its diameter by 30 cm. Find the radius of the circle. (Use pi = 22/7)
A7 cm
B10.5 cm
C14 cm
D21 cm
A boat goes 20 km downstream in 1 hour and 20 km upstream in 2 hours. What is the speed of the boat in still water?
A12 km/h
B15 km/h
C18 km/h
D20 km/h
Find the sum of all two-digit numbers divisible by 5.
A945
B950
C955
D960
Simplify: (x^b / x^c)^(b+c) * (x^c / x^a)^(c+a) * (x^a / x^b)^(a+b).
A0
B1
Cx
Dx^(a+b+c)
If 60% of students in a school are boys and the number of girls is 480, find the total number of students in the school.
A1000
B1200
C1400
D1500