Question
Download Solution PDFBy interchanging the given two signs and numbers which of the following equation will be correct?
× and ÷, 7 and 9
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFAccording to the question, after interchanging the given two signs and numbers :
- × and ÷
- 7 and 9
So,
Option - (1) : 9 – 7 × 2 + 6 ÷ 3 = 11
7 – 9 ÷ 2 + 6 × 3 = 11
7 - 4.5 + 6 × 3 = 11
7 + 18 - 4.5 = 11
25 - 4.5 = 11
20.5 ≠ 11 (LHS ≠ RHS)
Option - (2) : 9 + 4 × 3 – 7 ÷ 1 = 40
7 + 4 ÷ 3 – 9 × 1 = 40
7 + 1.33 – 9 × 1 = 40
7 + 1.33 - 9 = 40
8.33 - 9 = 40
0.67 ≠ 40 (LHS ≠ RHS)
Option - (3) : 8 × 3 ÷ 6 + 9 – 7 = 14
8 ÷ 3 × 6 + 7 – 9 = 14
2.67 × 6 + 7 - 9 = 14
16 + 7 - 9 = 14
23 - 9 = 14
14 = 14 (LHS = RHS)
Option - (4) : 9 × 3 + 4 ÷ 2 – 7 = 18
7 ÷ 3 + 4 × 2 – 9 = 18
3.5 + 4 × 2 – 9 = 18
3.5 + 8 - 9 = 18
11.5 - 9 = 18
2.5 ≠ 18 (LHS ≠ RHS)
Last updated on Jun 13, 2025
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