Aptitude - Arithmetical Ability

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7.

In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?                         
A. 1/3 B. 3/4
C. 7/19 D. 8/21



8.

How many factors of 25*36*52 are perfect squares?                         
A. 20 B. 24
C. 30 D. 36



9.

There are 6 boxes numbered 1,2,...6. Each box is to be filled up either with a red or a green ball in such a way that at least 1 box contains a green ball and the boxes containing green balls are consecutively numbered. The total number of ways in which this can be done is:                         
A. 5 B. 21
C. 33 D. 60




10.

From a pack of 52 cards, two cards are drawn together at random.What is the probability of both the cards being kings?                         
A. 1/15 B. 25/57
C. 35/256 D. 1/221



11.

In how many rearrangements of the word AMAZED, is the letter 'E' positioned in between the 2 'A's (Not necessarily flanked)?                         
A. 24 B. 72
C. 120 D. 240



12.

What is the probability of getting a sum 9 from two throws of a dice?                         
A. 1/6 B. 1/6
C. 1/9 D. 1/12



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