Question : Directions: If + means –, – means ×, × means ÷, and ÷ means +, then what will come in place of (?) in the given equation?
7 ÷ 20 – 5 × 20 + 2 = ?
Option 1: 10
Option 2: 15
Option 3: 20
Option 4: 30
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Correct Answer: 10
Solution :
Given:
+ means –, – means ×, × means ÷, and ÷ means +.
7 ÷ 20 – 5 × 20 + 2 = ?
After interchanging the given mathematical signs, we get –
⇒ 7 + 20 × 5 ÷ 20 – 2
⇒ 7 + 20 × 0.25 – 2
⇒ 7 + 5 – 2
⇒ 10
So, 10 is the answer to the given equation. Hence, the first option is correct.
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