Question
If five even consecutive numbers are arranged in
ascending order then find the third number. Statement I: Third largest number is 120% of the smallest number. Statement II: Difference between 4th largest number and 3rd smallest number is 15. For each of the following questions statements I and II are given. Use the data of those statements and then determine which of the following statements is necessary to answer the question:Solution
Let 5 consecutive even number be x, x+2, x+4, x+6, x+8. Statement I: => x + 4 = 120% of x => 5x + 20 = 6x => x = 20 Therefore the third number is = x + 4 = 20 + 4 = 24 Statement II: => (x + 4) - (x + 2) = 15 => 2 = 15 Therefore, only Statement I is sufficient to answer the question.
A five digits number is chosen at random. What is the probability that all the digits are distinct, the digits at odd places are odd and the digits are ...
Two cards are drawn from a pack of 52 cards. The probability that 1 is Ace and 1 is Queen is?
A bowl contains 9 blue balls, 7 white, and 5 black balls. If 2 balls are drawn in one go, then the probability of exactly one ball being blue is:
A letter is taken out at random from ‘CHACHAKE’ and another is taken out from ‘PATAKHE’. The probability that they are the same letter isÂ
...A bag contains 5 red balls, 4 blue balls, and 3 green balls. If three balls are drawn randomly, what is the probability that all three balls are of diff...
A bag contains 8 green balls, 5 yellow balls and 3 blue balls. Two balls are drawn simultaneously. Find the probability that both the balls are of same ...
- ‘A’ and ‘B’ play a game in which a coin is tossed 4 times. ‘A’ wins if at least 3 heads appear. Find the probability that ‘A’ wins.
A box contains 13 black and 13 white balls. The probability of drawing two balls of the same colour is? Â
Bag A contains 4 blue and 5 green balls, while Bag B contains 6 blue and 10 red balls. If one ball is drawn from bag 'A' and bag 'B', respectively, at r...
A bag contains 4 red and 3 blue balls. Two balls are drawn at random without replacement. Find the probability that both balls are of the same colour.
Relevant for Exams:
