Question : Directions: Which two digits should be interchanged in the given equation to make it mathematically correct? 20 ÷ 7 × 2 + 5 – 3 = 12
Option 1: 2 and 3
Option 2: 7 and 5
Option 3: 7 and 2
Option 4: 2 and 5
New: SSC MTS 2024 Application Form OUT; Direct Link
Don't Miss: Month-wise Current Affairs | Upcoming Government Exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 7 and 5
Solution : Given: 20 ÷ 7 × 2 + 5 – 3 = 12
Let's check each option – First Option: 2 and 3 On interchanging the digits, we get – 30 ÷ 7 × 3 + 5 – 2 = 13 On solving the L.H.S. of the equation – = 30 ÷ 7 × 3 + 5 – 2 = 12.86 + 5 – 2 = 15.86 ≠ 13 Second Option: 7 and 5 On interchanging the digits, we get – 20 ÷ 5 × 2 + 7 – 3 = 12 On solving the L.H.S. of the equation – = 20 ÷ 5 × 2 + 7 – 3 = 4 × 2 + 7 – 3 = 8 + 7 – 3 = 12 Third Option: 7 and 2 On interchanging the digits, we get – 70 ÷ 2 × 7 + 5 – 3 = 17 On solving the L.H.S. of the equation – = 70 ÷ 2 × 7 + 5 – 3 = 35 × 7 + 5 – 3 = 245 + 5 – 3 = 247 ≠ 17 Fourth Option: 2 and 5 On interchanging the digits, we get – 50 ÷ 7 × 5 + 2 – 3 = 15 On solving the L.H.S. of the equation – = 50 ÷ 7 × 5 + 2 – 3 = 35.71 + 2 – 3 = 34.71 ≠ 15
So, only the second option satisfies the equation. Hence, the second option is correct.
Application | Cutoff | Selection Process | Preparation Tips | Eligibility | Exam Pattern | Admit Card
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? 7 × 2 + 4 – 6 ÷ 3 = 12
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 should be interchanged to make the given equation correct? 5 × 6 –7 + 24 ÷ 12 = 35
Question : Directions: Which two signs should be interchanged, to make the given equation correct? 8 + 9 ÷ 5 × 4 – 2 = 7
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile