brain teasers Quiz
Question Number 1
How many zeros does 100! have from the ones?
A. 20
B. 21
C. 22
D. 23
E. 24
F. 25
Question Number 2
How many factors does 2003 have?
A. 2
B. 4
C. 6
D. 8
E. 10
F. 12
Question Number 3
What is 999999999x999999999
A. 99999999800000001
B. 9999999998000000001
C. 999999999800000001
D. 99999999980000001
E. 999999998000000001
F. 99999999998000000001
Question Number 4
What is equal to 16x8x64x4?
A. 2x2x2x2x2x2x2x2x2x2
B. 2x2x2x2x2x2x2x2x2x2x2
C. 2x2x2x2x2x2x2x2x2x2x2x2
D. 2x2x2x2x2x2x2x2x2x2x2x2x2
E. 2x2x2x2x2x2x2x2x2x2x2x2x2x2
F. 2x2x2x2x2x2x2x2x2x2x2x2x2x2x2
Question Number 5
What is 40001% of 39999?
A. 15999999.99
B. 159999999.99
C. 1599999999.99
D. 15999999999.99
E. 159999999999.99
F. 1599999999999.99
Question Number 6
What is the prime factorazation of 9409?
A. 3x3x29x29
B. 97x97
C. 103x83
D. 7x13x79
E. 3x29x97
F. 11x23x23
Question Number 7
What is the tens place in 2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2?
A. 4
B. 5
C. 6
D. 7
E. 8
F. 9
Question Number 8
What is the hundredths place in 5x5x5x5x5x5x5x5x5x5x5x5x5x5x5x5x5
A. 1
B. 2
C. 3
D. 4
E. 5
F. 6
Question Number 9
What is 4x2x4x8x4x5x25x4x25x2x25x125x4x3125?
A. 2000000000000000
B. 800000000000000
C. 500000000000000
D. 100000000000000
E. 1000000000000000
F. 400000000000000
Question Number 10
What is l (-1x2)+2x3 l + l -45x1/9 l?
A. 5
B. 6
C. 7
D. 8
E. 9
F. 10