maths! maths! maths!

1. Which of the following cannot be a binary numbers?


a. 11001 b. 10112 c . 10101010 d. None of the above
answer is (b. 10112)


2. Which of the following cannot be a denary numbers?


a. 123456 b. 789012 c . 999999999 d. None of the above
Answer is d.


3. Which of the following cannot be a hexadecimal numbers?


a. 1101001 b. 1234567 c . ABCDEFG d. None of the above
Answer is c. (no G in a hexadecimal number)


4. What does the hexadecimal numeral ‘ C ’represent?


a. 3 b. 12 c . 13 d. 14
Answer is b. 12


5. What is the place value of ‘ 1’ in 10002.


a. 8 b. 16 c . 1000 d. 2000
it is = 2^3 = 8, the answer is a.


6. What is the place valueof’ 2’ in 123410.


a. 100 b. 2000 c . 1000 d. 2000
it is = 200, the answer is b????????


7. What is the place value of ‘ 3’ inA3B416.


a. 48 b. 100 c . 256 d. 768
= 16^2 * 3 = 768. the answer is d


8. Which of the following is the largest?


a. 10112 b. 11012 c . 1112 d. 100112
The answer is d.


9. Which of the following is the smallest?


a. ABCD16 b. 987616 c . DCBA16 d. BBBB16
The answer is b.