Question
Download Solution PDFWhich two numbers and signs should be interchanged to make the following equation correct?
14 × 3 ÷ 6 - 12 + 13 = 8
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFLet's check each option,
Given Equation: 14 × 3 ÷ 6 - 12 + 13 = 8
1) 14 and 12, × and ÷
→ 12 ÷ 3 × 6 - 14 + 13 = 8
→ 4 × 6 - 14 + 13 = 8
→ 24 - 14 + 13 = 8
→ 37 - 14 = 8
→ 23 ≠ 8
→ LHS ≠ RHS
2) 12 and 14, × and -
→ 12 - 3 ÷ 6 × 14 + 13 = 8
→ 12 - 1/2 × 14 + 13 = 8
→ 12 - 7 + 13 = 8
→ 25 - 7 = 8
→ 18 ≠ 8
→ LHS ≠ RHS
3) 6 and 12, × and -
→ 14 - 3 ÷ 12 × 6 + 13 = 8
→ 14 - 1/4 × 6 + 13 = 8
→ 14 - 3/2 + 13 = 8
→ 27 - 3/2 = 8
→ 25.5 = 8
→ LHS ≠ RHS
4) 12 and 13, + and -
→ 14 × 3 ÷ 6 + 13 - 12 = 8
→ 14 × 1/2 + 13 - 12 = 8
→ 7 + 13 - 12 = 8
→ 20 - 12 = 8
→ 8 = 8
→ LHS = RHS → Satisfies the equation.
Here, we can see that only Option 4 satisfies the equation.
Hence, the correct answer is "12 and 13, + and -".
Last updated on Jun 19, 2025
-> The AAI ATC Exam 2025 will be conducted on July 14, 2025 for Junior Executive..
-> AAI JE ATC recruitment 2025 application form has been released at the official website. The last date to apply for AAI ATC recruitment 2025 is May 24, 2025.
-> AAI JE ATC 2025 notification is released on April 4, 2025, along with the details of application dates, eligibility, and selection process.
-> A total number of 309 vacancies are announced for the AAI JE ATC 2025 recruitment.
-> This exam is going to be conducted for the post of Junior Executive (Air Traffic Control) in the Airports Authority of India (AAI).
-> The Selection of the candidates is based on the Computer-Based Test, Voice Test and Test for consumption of Psychoactive Substances.
-> The AAI JE ATC Salary 2025 will be in the pay scale of Rs 40,000-3%-1,40,000 (E-1).
-> Candidates can check the AAI JE ATC Previous Year Papers to check the difficulty level of the exam.
-> Applicants can also attend the AAI JE ATC Test Series which helps in the preparation.