Question : Directions: If + means divided by, – means added to, × means subtracted from and ÷ means multiplied by, then what will be the value of the following expression?
[{(25 × 13) – (3 ÷ 3)} + (3 – 4)] ÷ 5 = ?
Option 1: 20
Option 2: 10
Option 3: 15
Option 4: 5
Correct Answer: 15
Solution :
Given:
+ means divided by, – means added to, × means subtracted from and ÷ means multiplied by
[{(25 × 13) – (3 ÷ 3)} + (3 – 4)] ÷ 5 = ?
After replacing the letters with the mathematical signs, we get:
= [{(25 – 13) + (3 × 3)} ÷ (3 + 4)] × 5
= [{12 + 9} ÷ 7] × 5
= [21 ÷ 7] × 5
= 3 × 5
= 15
So, 15 is the answer to the given equation. Hence, the third option is correct.
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