What is the probability that an integer x,(1 \(\leq\) x \...
What is the probability that an integer x,(1 \(\leq\) x \(\leq\) 20) chosen at random is divisible by both 2 and 3?
1/20
1/3
3/20
7/10
Correct answer is C
U = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20}
A = {x/x is divisible by 2}
A = {2,4,6,8,10,12,14,16,18,20}
B = {x/x is divisible by 3}
A ∩ B = {6, 12, 18}
P(Number divisible by both 2 and 3)
= 3/20
Find the gradient of the line passing through the points \((\frac{1}{2}, \frac{- 1}{3}) ...
A chord of a circle subtends an angle of 120° at the centre of a circle of diameter \(4\sqr...
In the diagram above, ∠SPR = P and ∠SQR = 2x. Find x in terms of P ...
The sum of 6 and one-third of x is one more than twice x, find x ...
In the figure, YXZ = 30o, XYZ = 105o and XY = 8cm. Calculate YZ...
Find the next three terms of the sequence; 0, 1, 1, 2, 3, 5, 8... ...