Math Puzzle 28
This math puzzle 28 is on set,exponents,absolute equation,algebra etc
1) What value of n satisfies the equation 1 = 3(1/n-3) ?
A. 1/3
B. 1/4
C. 3
D. 4
E. None of these
2) Set A = {3,5,9,22,23,40,42} and set B = {1,2,3,5 ,8 ,23,42,51}. What is the mode of union of elements of A & B?
A. 3
B. 5
C. 23
D. 42
E. there is no mode
3) A haystack is large enough to feed 15 horses for 10 days; how long will a similar haystack last for 2 groups of 6 horses each?
A. 9
B. 10
C. 12.5
D. 18
E. 25
4) If |x-3| = 6, what is x?
A. 3 or 9
B. -3 or -9
C. 3
D. 3 or -9
E. -3 or 9
5) Circumference of a circle with radius 4 is equal to the perimeter of a square. What is the area of the square?
A. π
2
B. 2π
2
C. 4π
D. 4π
2
E. 16π
2
6) Sum of 5 times Tim's age and 3 times Allan's age is same as their mother's age. 2 years from now, sum of 3 times Tim's age and 3 times Allan's age will be same as their mother's age at that time. How old is Tim now?
A. 2
B. 5
C. 7
D. 14
E. cannot be found with this information
7) For a set of consecutive integers a, b, c, d, e, which among the following is/are true?
I Average is c
II Average is (b+d)/2
III Average is (b+c+d)/3
A. I is true
B. I, II are true
C. I, II, III are true
D. II, III are true
E. I, III are true
8) If 5/17 = x/68 and 9/23 = y/92, which among the following is true?
A. x < y
B. x > y
C. x = y
D. x + y = 46
E. x/y = 9/5
9)If 3x- 2y / 9x + 2y = 2/7, what is the value of x/y?
A. 1/3
B. 1/6
C. 3
D. 6
E. 9
10) If m = (3n - 2)/(n + 4), what is n if m = - 1?
A. -1/4
B. -1/2
C. 1/2
D. 1
E. 2
Math puzzle 28
From Math puzzle 28 to Math Teasers
Home