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QUESTION
(a) A bowl contains ten red balls and ten blue balls. A woman selects balls at random without looking at them.
i) How many balls must she select to be sure of having at least three balls of the same colour?
ii) How many balls must she select to be sure of having at least three blue balls?
(b) The English alphabet contains 21 consonants and 5 vowels. How many strings of six lowercase letters of the English alphabet contain
i) Exactly one vowel?
ii) Exactly two vowels?
iii) At least one vowel?
iv) At least two vowels?
Raul has 56 bouncy balls. He puts three times as many balls into red gift bags as he puts into green gift bags. If he puts the same number of balls in each bag, how many balls does
Write down the first few terms of each of the subsequent sequences. 1. {n+1 / n 2 } ∞ n=1 2. {(-1)n+1 / 2n} ∞ n=0 3. {bn} ∞ n=1, where bn = nth digit of ? So
Q) In 3D-geometry give + and - signs for x,y,z, in all eight octants Ans) There is no specific hard rule for numbering the octants. So, it makes no real sense to ask which octan
the (cube square root of 2)^1/2)^3
What is the ratio of the cone''s volume to the cylinder''s volume
From a fixed point directly in front of the center of a bull's eye, Kim aims two arrows at the bull's eye. The first arrow nicks one point on the edge of the bull's eye; the second
1. If the equation has any fractions employ the least common denominator to apparent the fractions. We will do this through multiplying both sides of the equation by the LCD. Al
In 6th grade I am learning about ratios rates and fractions. I am working on vmathlive.com and need serious.
What is 124 out of 300 in percent ?
Rick is order a latest triangular sail for his boat. He needs knowing the area of the sail. Which formula will he use? The area of a triangle is 1/2 times the length of the bas
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