Question : Directions: After interchanging the given two numbers and two signs what will be the values of equations (I) and (II) respectively?
÷ and ×; 1 and 3
I. 6 + 4 – 9 × 3 ÷ 1
II. 4 × 3 – 1 + 8 ÷ 2
Option 1: 26; 17
Option 2: –17; 17
Option 3: 9; 18
Option 4: 11; 15
Correct Answer: –17; 17
Solution :
Given:
÷ and ×; 1 and 3
I. 6 + 4 – 9 × 3 ÷ 1
II. 4 × 3 – 1 + 8 ÷ 2
After interchanging symbols and numbers the equations are as follows –
I. 6 + 4 – 9 ÷ 1 × 3
= 10 – 27
= –17
II. 4 ÷ 1 – 3 + 8 × 2
= 4 – 3 + 16
= 17
Therefore, the answer after solving the equations is –17; 17. Hence, the second option is correct.
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