Question

If ‘+’ means ×, ‘–’ means ÷ , ‘×’ means + and ‘÷ ’ means – ; compute the value of the expression: 45–9+4×5

• A. 21
• B. 25
• C. 26
• D. 23

Answer 1

Answer:

B. 25

from the questions,

$45-9+4\times5$substitute the symbol on threir corresponding places,$- changed to\div,+ changed to \times,\times changed to +$.</p><p style="color: rgb(0,0,0); margin-top: 2px; margin-bottom: 2px" data-pxy="true">$$By using BODMAS,</p><p style="color: rgb(0,0,0); margin-top: 2px; margin-bottom: 2px" data-pxy="true">$45\div9\times4+5=(\frac{45}9\times4)+5$</p><p style="color: rgb(0,0,0); margin-top: 2px; margin-bottom: 2px" data-pxy="true">$=(5\times4)+5=20+5$</p><p style="color: rgb(0,0,0); margin-top: 2px; margin-bottom: 2px" data-pxy="true">$=25$