Math Puzzle 35

This math puzzle 35 is on odd man out,area,LCM,Probability etc.

1) A copper wire is bent in the form of a circle that encloses an area of 2401 Π . If the same wire is bent to from a square, then the area of the square is
A. 309      B. 2539      C. 5000      D. 5929      E. 6000

2) The mean of 30 numbers is 66. If 20 of these numbers are increased by 5 and the remaining numbers are each decreased by 4, then find the mean of the new set of numbers.
A. 33.3      B. 66      C. 68      D. 99.3      E. Insufficient data

3) If √3^x = 729, what is x?
A. 1/12      B. 3      C. 6      D. 9      E. 12

4) If x/y =3/2 and 4x - 3y = 6, then what is x?
A. -3      B. 1      C. 2      D. 3      E. 4

5) If x + (1/x) = 2, then x² + (1/x² ) =?
A. 2      B. 4      C. 1/2      D. -2      E. 0

6) The smallest number which when divided by 56 and 80 respectively leaves a remainder of 9 is
A. 89      B. 121      C. 289      D. 569      E. 1129

7) From a bag of 25 coins, Mary received 1/3 of the coins, John received 2/5 of the balance and Andy received all the other coins left in the bag. If Andy got 30 coins, how many coins did Mary receive?
A. 15      B. 20      C. 25      D. 30      E. 35

8) What is the remainder when 7 49 is divided by 10?
A. 0      B. 1      C. 3      D. 7      E. 9

ODD MAN OUT
9) A) Sun      B) Moon      C)Venus      D)Mars      E)Earth

10) A)milk      B)Syrup      C)Squash      D)Tea      E)Cake

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Math puzzle 35

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