Question : Directions: After interchanging the given two numbers (Not digits) what will be the values of expression (I) and (II) respectively?
6 and 9
I. 9 ÷ 3 × 4 – 6 + 5
II. 9 + 3 ÷ 2 × 4 – 6
Option 1: 4 and 3
Option 2: 10 and 9
Option 3: 9 and 10
Option 4: 3 and 4
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Correct Answer: 4 and 3
Solution :
Given:
I. 9 ÷ 3 × 4 – 6 + 5
II. 9 + 3 ÷ 2 × 4 – 6
On interchanging the numbers in the given equation, we get –
Equation I.
6 ÷ 3 × 4 – 9 + 5
= 2 × 4 – 9 + 5
= 8 – 9 + 5
= 13 – 9
= 4
Equation II.
6 + 3 ÷ 2 × 4 – 9
= 6 + 1.5 × 4 – 9
= 6 + 6 – 9
= 12 – 9
= 3
Hence, the first option is correct.
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