A container has 30 gold medals, 22 silver medals and 18 b...
A container has 30 gold medals, 22 silver medals and 18 bronze medals. If one medals is selected at the random from the container, what is the probability that it is not a gold medal?
9/35
11/35
4/7
3/7
Correct answer is C
Gold medals = 30
silver medals = 22
Bronze medals = 18/70
P(Gold medals) = 30/70 = 3/7
∴ P(not Gold medal) = 1 - 3/7
= 4/7
If 20(mod 9) is equivalent to y(mod 6), find y. ...
The 3rd term of an A.P is 4x - 2y and the 9th term is 10x - 8y. Find the common difference. ...
Factorise (4a + 3) 2 - (3a - 2)2...
Solve the equation: 3a + 10 = a2...
Simplify [1 ÷ (x + 1)] - [2 ÷ (x - 1)] + [3 ÷ (x2 - 1)]...
Find the equation of the locus of a point A(x, y) which is equidistant from B(0, 2) and C(2, 1) ...
In the figure, TZ is tangent to the circle QPZ. Find x if TZ = 6 units and PQ = 9 units ...