Chapter-10⇒Mathematical Operations 1. If ‘+’ means ‘×’, ‘÷’ means ‘-‘, ‘-‘ means ‘÷’ and ‘×’ means ‘+’, then find the value of 2 + 2² – 2 × 2² ÷ 2 6 8 10 5 2. If + stands for ‘division’, × stands for ‘addition’, – stands for ‘multiplication’ and ÷ stands for ‘subtraction’, then which of the following equations is correct? 36 × 6 + 7 ÷ 2 – 6 = 20 36 ÷ 6 + 3 × 5 – 3 = 45 36 + 6 – 3 × 5 ÷ 3 = 24 36 – 6 + 3 × 5 ÷ 3 = 74 3. If + means -, – means ×, × means ÷ and ÷ means +, then 15 × 3 ÷ 15 + 5 – 2 = ? 0 6 10 20 4. If ‘0’ stands for ‘multiply and halve’ and ‘*’ stands for ‘add and double the sum’, then the value of (3 * 1) * (3 ‘0’ 4) is 28 30 31 32 5. If – means ×, × means +, + means ÷ and ÷ means -, then 40 × 12 +3 – 6 ÷ 60 = ? 7.95 16 4 479.95 6. In the following equation, two signs need to be interchanged to make it correct. Choose the signs from he given alternatives. 36 ÷ 2 + 36 ÷ 6 – 2 × 1 = 14 + and – ÷ and × + and × – and ÷ 7. If ‘+’ means ‘×’, ‘÷’ means ‘-‘, ‘×’ means ‘÷’ and ‘-‘ means ‘+’, then the value of 16 + 32 – 48 × 64 ÷ 480 is 33¾ 32⅔ 32¾ 1 8. If * = +, # = -, @ = =; $ = ×; & = ÷, then which of the following options is true? (7 # 2) & 5 @ 10 $ 1 (81 # 80) * 2 & 3 * 4 @ 3 (70 & 10) * 3 # 5 @ 10 # 5 (12 & 3) # 12 $ 5 @ 76 $ 1 9. If – means ÷, + means ×, ÷ means -, × means +, then which of the following equations is correct? 52 ÷ 4 +5 × 8 – 2 = 36 43 × 7 ÷ 5 + 4 – 8 = 25 36 × 4 – 12 + 5 ÷ 3 = 420 36 – 12 × 6 ÷ 3 + 4 = 60 10. If ‘+’ means ‘×’, ‘÷’ means ‘-‘, ‘-‘ means ‘÷’ and ‘×’ means ‘+’, then find the value of 123 – 41 + 4 × 13 ÷ 5 10 20 15 17 Loading … Question 1 of 10