Question

"If the given symbols mean:

'+' means 'divided by'

'-' means 'multiplied by'

'x' means 'minus'

'÷' means 'plus'

Then, find the value of the following expressions: 7 × 3 ÷ 4 + 20 - 5=?

• A. 7
• B. 9
• C. 5
• D. 11

Answer 1

Answer:

C. 5

Replace the symbols with their new meanings:

• + means ÷

• - means ×

• × means −

• ÷ means +

So,

7 × 3 ÷ 4 + 20 - 5

becomes:

7 − 3 + 4 ÷ 20 × 5

Now apply the usual order of operations (÷ and × before + and −):

• (4 \div 20 = 0.2)

• (0.2 \times 5 = 1)

So the expression becomes:

7 − 3 + 1 = 4 + 1 = 5

Answer: 5