Question
A box contains only three colors of balls- red, green
and blue. What is the minimum number of balls that should be picked from the box to ensure that at least 5 red balls or at least 7 green balls or at least 9 blue balls are picked?Solution
If we pick at least 4 red balls, 6 green balls and 8 blue balls from the box, the total number of balls picked from the box will be 18. If one more ball is picked from the box, irrespective of what it is, it can be said that at least 5 red balls or at least 7 green balls or at least 9 blue balls have been picked from the basket. Hence, required number of balls = 18 + 1 = 19
Select the number that can replace the (?) in the following series.
240, ?, 120, 40, 10 , 2
Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
17 * 4 * 6 * 2 * 4 = 9
What should come in place of the question mark (?) in the given series?
42, 48, 54, 60, 66, ?
Select the option that represents the correct order of the given words as they would appear in an English dictionary.
1. Diamond
2. Dialog...
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Some shells are pebbles.
All pebbles are rocks.
Conclusions:
I. No shell is a rock.
II. Some shells a...
What should come in place of '?' in the given series?
18 32 60 116 228 ?
Seven boxes M, N, O, W, X, Y and Z are kept one over the other but not necessarily in the same order.
i. N is kept immediately above W.
ii...
Which of the following terms will replace the question mark (?) in the given series?
HKOE , KNOE , ? , QTOE , TWOE
In a certain code language,
A + B means ‘A is the brother of B’.
A − B means ‘A is the father of B’.
A × B means ‘A is...
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance...
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