Question : Directions: Which two signs should be interchanged, to make the given equation correct? 8 + 9 ÷ 5 × 4 – 2 = 7
Option 1: = and +
Option 2: – and =
Option 3: ÷ and –
Option 4: + and –
New: SSC MTS Tier 1 Answer key 2024 out
Don't Miss: Month-wise Current Affairs | Upcoming Government Exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: ÷ and –
Solution : Given: 8 + 9 ÷ 5 × 4 – 2 = 7
Replace the given symbols in the options one by one with the original symbols in the given equation. Let's check the given options – First Option: = and + 8 + 9 ÷ 5 × 4 – 2 = 7 ⇒ 8 = 9 ÷ 5 × 4 – 2 + 7 Solving the R.H.S. of the equation – = 1.8 × 4 – 2 + 7 = 7.2 – 2 + 7 = 12.2 ≠ 8 Second option: – and = 8 + 9 ÷ 5 × 4 – 2 = 7 ⇒ 8 + 9 ÷ 5 × 4 = 2 – 7 Solving the L.H.S. of the equation – = 8 + 1.8 × 4 = 8 + 7.2 = 15.2 Solving the R.H.S. of the equation – = 2 – 7 = –5 L.H.S ≠ R.H.S Third option: ÷ and – 8 + 9 ÷ 5 × 4 – 2 = 7 ⇒ 8 + 9 – 5 × 4 ÷ 2 = 7 Solving the L.H.S. of the equation – = 8 + 9 – 5 × 2 = 8 + 9 – 10 = 7 Fourth option: + and – 8 + 9 ÷ 5 × 4 – 2 = 7 ⇒ 8 – 9 ÷ 5 × 4 + 2 = 7 Solving the L.H.S. of the equation – = 8 – 1.8 × 4 + 2 = 8 – 7.2 + 2 = 2.8 ≠ 7
So, only the third option satisfies the given equation. Hence, the third option is correct.
Answer Key | Cutoff | Selection Process | Preparation Tips | Eligibility | Application | Exam Pattern
Question : Directions: Which two signs should be interchanged to make the given equation correct? 5 ÷ 4 × 8 = 7 – 3
Question : Directions: Which two signs should be interchanged to make the given equation correct? 8 ÷ 2 × 7 – 5 + 2 = 1
Question : Directions: Which two signs should be interchanged to make the given equation correct? 8 = 5 – 31 + 12 ÷ 2 × 15
Question : Directions: Which two signs need to be interchanged to make the following equation correct? 9 + 3 – 4 ÷ 5 × 2 = 9
Question : Directions: Which two signs should be interchanged, to make the given equation correct? 2 ÷ 9 × 18 + 7 – 4 = 1
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile