American Computer Science League (Contest 1)
Authored by Blessing Malunga
Computers
9th - 12th Grade
Used 3+ times
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8 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Computer Number Systems
How many 1’s are there in the binary representation of 202110 ?
A. 6
B. 7
C. 8
D. 9
E. 10
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Computer Number Systems
Evaluate and express the answer in hexadecimal the numbers are in base 8 : 72126 - 54127
A. 1BFF
B. 1AEF
C. 1BFE
D. 1AFF
E. BFF
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Q.3
A. -6
B. -4
C. 2
D. 4
E. 6
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Q.4
A. 9
B. 11
C. 13
D. 15
E. 1
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Computer Number Systems
How many 6’s are there in the octal representation of the decimal numbers from 675 to 700, inclusive?
A. 9
B. 10
C. 11
D. 12
E. 13
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Computer Number Systems
Evaluate and express in base 16 if both numbers are hexadecimal.
13 * 74F
A. 8BDD
B. 8ADD
C. 7BDE
D. 8AEC
E. 8ACD
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Q.7
A. 9
B. 49
C. 56
D. 76
E. 80
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