Solve for x: sqrt(4x + 9) = 7.
A8
B9
C10
D11
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Archives: MCQs
Find the mode of the given distribution: 12, 15, 12, 18, 14, 12, 15, 19, 12.
A12
B14
C15
D18
A student has to secure 40% marks to pass an exam. He gets 178 marks and fails by 22 marks. What are the maximum marks?
A450
B500
C550
D600
Simplify: (0.87 * 0.87 * 0.87 + 0.13 * 0.13 * 0.13) / (0.87 * 0.87 – 0.87 * 0.13 + 0.13 * 0.13).
A0.74
B0.87
C1.00
D1.13
Two dice are thrown together. What is the probability that the sum of the numbers on the top faces is divisible by 5?
A1/6
B7/36
C2/9
D5/36
The area of a square is equal to the area of a circle with radius 7 cm. Find the side of the square. (Use pi = 22/7)
A11 cm
B12.41 cm
C14 cm
D15.4 cm
A boat travels 24 km upstream and 36 km downstream in 6 hours. If the speed of the stream is 2 km/h, find the speed of the boat in still water.
A8 km/h
B10 km/h
C12 km/h
D14 km/h
How many terms are there in the sequence 5, 10, 15, …, 200?
A38
B39
C40
D41
Simplify: (x^(a-b))^(a+b) / (x^(a+b))^(a-b).
A0
B1
Cx
Dx^2
If 75% of a number is added to 75, the result is the number itself. Find the number.
A250
B300
C350
D400