Question : Directions: What will be the value of the following expression, if × and – are interchanged and + and ÷ are interchanged?
200 ÷ 100 × 300 ÷ 200 + 10 – 2 × 40 = ?
Option 1: 200
Option 2: 2
Option 3: 40
Option 4: 0
Correct Answer: 0
Solution :
Given:
200 ÷ 100 × 300 ÷ 200 + 10 – 2 × 40 = ?
On interchanging the mathematical signs, we get –
= 200 + 100 – 300 + 200 ÷ 10 × 2 – 40
= 200 + 100 – 300 + 20 × 2 – 40
= 200 + 100 – 300 + 40 – 40
= 340 – 340
= 0
Hence, the fourth option is correct.
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