Question : Directions: If + means divided by, – means add, × means minus and ÷ means multiplied by, what will be the value of the following expression:
[{(21 × 17) – (3 ÷ 2)} + (3 – 2)] ÷ 2
Option 1: 2
Option 2: 1
Option 3: 3
Option 4: 4
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Correct Answer: 4
Solution :
Given:
+ means divided by, – means add, × means minus and ÷ means multiplied by
[{(21 × 17) – (3 ÷ 2)} + (3 – 2)] ÷ 2
After interchanging the given mathematical signs, we get –
= [{(21 – 17) + (3 × 2)} ÷ (3 + 2)] × 2
= [{4 + 6} ÷ 5] × 2
= [10 ÷ 5] × 2
= 2 × 2
= 4
So, 4 is the answer to the given equation. Hence, the fourth option is correct.
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