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12 12 Mathematical Operations

Mathematical Operations

Solve the following.

1. If P denotes ‘multiplied by’, Q denotes ‘subtraction’, M denotes ‘added to’ and L denotes
‘divided by’, then 2 8 L 7 P 8 Q 6 M 4 = ?

a. 3/2 b. 30

c. 32 d. 34

2. If ‘÷’ denotes ‘×’, ‘×’ denotes ‘+’ , ‘+’ denotes ’–’, and ‘–’ denotes ‘÷’, then find the value of:
12 ÷ 6 – 3 × 2 + 7.

a. 9 b. 10

c. 19 d. 14

3. If $ denotes +, # denotes –, @ denotes ×, and * denotes ÷, then what is the value of:

16 $ 4 @ 5 # 72*8?

a. 25 b. 27

c. 29 d. 36

4. If 8 * 7 = 56, 9 * 6 = 54 and 8 * 3 = 24, then find the value of 8 * 5.

a. 55 b. 40

c. 50 d. 44

5. If ‘+’ is called ‘subtraction’ , ’–’ is called ‘multiplication’, ’÷’ is called ‘addition’, and ‘×’ is called
‘division’, then 9 × 3 ÷ 4 – 1 + 2 = ?

a. 5 b. 3/2

c. –1 d. 4

6. Correct the given equation by interchanging two numbers:

8 × 3 ÷ 4 + 9 – 5 = 16
a. 4 and 8 b. 5 and 9

c. 3 and 4 d. 5 and 3

7. If 25 + 5 ÷ 2 = 40, and 35 + 5 ÷ 2 = 60, then 45 + 5 ÷ 2 = ?

a. 90 b. 80

c. 70 d. 60

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