Question : Directions: After interchanging the given two numbers and two signs what will be the values of equations (I) and (II) respectively?
× and –; 4 and 2
I. 7 – 5 × 4 + 8 ÷ 2
II. 7 × 3 – 8 ÷ 2 + 4
Option 1: 25; 23
Option 2: 37; 25
Option 3: 35; 3
Option 4: 41; 47
Correct Answer: 35; 3
Solution :
Given:
× and –, 4 and 2
I. 7 – 5 × 4 + 8 ÷ 2
II. 7 × 3 – 8 ÷ 2 + 4
After interchanging the signs and numbers, the equations become –
I. 7 × 5 – 2 + 8 ÷ 4
= 35 – 2 + 2
= 35
II. 7 – 3 × 8 ÷ 4 + 2
= 7 – 6 + 2
= 1 + 2
= 3
Therefore, after solving the equations the answer is 35; 3. Hence, the third option is correct.
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