March 31 2018

__BINARY NUMBERS__

1. Convert 11001101 base two to a number in denary

(A)205 (B)204 (C)203 (D)206

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [BIN](log)

Press [1] [1] [0] [0] [1] [1] [0] [1] [=] [dec] (205)

The correct option is “A”

2. Multiply 11010 (X) 111

(A)11110110 (B)10110111 (C)10110110 (D)11111110

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [BIN] (log)

Press [1] [1] [0] [1] [0] [X] [1] [1] [1] [=] (10110110)

The correct answer is “C”

3. Divide 1010110 by 1011

(A)101 (B)111 (C)110 (D)100

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [BIN] (log)

Press [1] [0] [1] [0] [1] [1] [0] [÷] [1] [0] [1] [1] [=] (111)

The correct option is “B”

4. Add 11111 by 111

(A)101100 (B)111110 (C)110111 (D)100110

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [BIN] (log)

Press [1] [1] [1] [1] [1] [÷] [1] [1] [1] [=] (100110)

__OCTAL__

1. Add 654 by 236

(A)1112 (B)6112 (C)1113 (D)2112

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [OCT]

Press [6] [5] [4] [+] [2] [3] [6] [=] (1112)

2. Subtract 654 by 236

(A)418 (B)416 (C)413 (D)412

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [OCT]

Press [6] [5] [4] [-] [2] [3] [6] [=] (416)

3. Multiply 654 by 236

(A)204418 (B)210416 (C)204413 (D)204050

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [OCT]

Press [6] [5] [4] [X] [2] [3] [6] [=] (204050)

4.Divide 654 by 236

(A)2 (B)4 (C)3 (D)7

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [OCT]

Press [6] [5] [4] [÷] [2] [3] [6] [=] (2)

__HEXADECIMAL__

1 .Convert 6AE2 to denary

(A)109872 (B)27362 (C)27361 (D)100274

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [HEX]

Press [6] [A] [E] [2] [=] [DEC] (27362)

option “B” is correct

2 .Add 6AE + 23

(A)6D1 (B)6D2 (C)6D3 (D)5D2

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [HEX]

Press [6] [A] [E] [+] [2] [3] [=] (6D1)

3 .Multiply 6AE by 23

(A)6D1A (B)6DE2 (C)E9CA (D)5D2A

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [HEX]

Press [6] [A] [E] [X] [2] [3] [=] (E9CA)

4. Divide 6AE by 23

(A)61 (B)30 (C)63 (D)52

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [HEX]

Press [6] [A] [E] [÷] [2] [3] [=] (30)

5. Subtract 6AE by 23

(A)6D1 (B)682 (C)68B (D)5D2

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [HEX]

Press [6] [A] [E] [-] [2] [3] [=] (68B)

__CONVERSION BASES__

1. Convert 632 base 8 to base 2

(A)110011010 (B)111101010 (C)100011010 (D)100000111

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [OCT]

Press [6] [3] [2] [=] [BIN] (110011010)

2. Convert 632 base 8 to base 12

(A)19A (B)1A9 (C)11A (D)2CD

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [OCT]

Press [6] [3] [2] [=] [HEX] (19A)

3. Convert 632 base 8 to denary

(A)410 (B)110 (C)102 (D)141

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [OCT]

Press [6] [3] [2] [=] [DEC] (410)

4. Convert 2C45 base 12 to base 8

(A)26104 (B)26143 (C)26105 (D)26114

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [HEX]

Press [2] [C] [4] [5] [=] [OCT] (26105)

5. Convert 2C45 base 12 to denary

(A)26104 (B)11333 (C)26105 (D)26114

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [HEX]

Press [2] [C] [4] [5] [=] [DEC] (11333)

6. Convert 11010 base 2 to base 8

(A)32 (B)43 (C)26 (D) 14

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [BIN]

Press [1] [1] [0] [1] [0] [=] [OCT] (32)

7. Convert 11010 base 2 to base 12

(A)5B (B)4B (C)2B (D) 1A

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [BIN]

Press [1] [1] [0] [1] [0] [=] [HEX] (1A)

8. Convert 11010 base 2 to denary

(A)53 (B)43 (C)26 (D) 14

Solution:- Using fx-991MS calculator

[ON] [MODE] [MODE] [3] [BIN]

Press [1] [1] [0] [1] [0] [=] [DEC] (26)

Note

(Octal = base 8) (hexadecimal = base 12) (binary = base 2)

(Denary = base 10).

The Legends

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