Aptitude - Arithmetical Ability

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37.

Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart, is:                         
A. 3/20 B. 29/34
C. 47/100 D. 13/102



38.

One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card (Jack, Queen and King only)?                         
A. 1/13 B. 3/13
C. 1/4 D. 9/52



39.

An urn contains 6 Red, 4 Blue, 2 Green and 3 Yellow marbles.(a) If two marbles are picked at random, what is the probability that both are Red?                         
A. 1/7 B. 1/3
C. 2/15 D. 2/5




40.

(b) If three marbles are picked at random, what is the probability that two are Blue and one is Yellow ?                         
A. 3/91 B. 1/15
C. 18/455 D. 7/15



41.

(c) If four marbles are picked at random, what is the probability that at least one is Blue?                         
A. 4/15 B. 69/91
C. 11/15 D. 22/91



42.

(d)If two marbles are picked at random, what is the probability that either both are Green or both are Yellow ?                         
A. 5/91 B. 1/35
C. 1/3 D. 4/105



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