Question : Directions: In the following question, correct the equation by interchanging any two numbers. 5 + 3 ÷ 6 × 9 – 2 = 21
Option 1: 5 and 9
Option 2: 3 and 6
Option 3: 6 and 9
Option 4: 5 and 3
Correct Answer: 3 and 6
Solution : Given: 5 + 3 ÷ 6 × 9 – 2 = 21
Interchange the numbers according to the given options. Let's check each option – First option: 5 and 9 = 9 + 3 ÷ 6 × 5 – 2 = 9 + 0.5 × 5 – 2 = 9 + 2.5 – 2 = 11.5 ≠ 21 Second option: 3 and 6; = 5 + 6 ÷ 3 × 9 – 2 = 5 + 2 × 9 – 2 = 5 + 18 – 2 = 21 = R.H.S. Third option: 6 and 9; = 5 + 3 ÷ 9 × 6 – 2 = 5 + 2 – 2 = 5 ≠ 21 Fourth option: 5 and 3; = 3 + 5 ÷ 6 × 9 – 2 = 3 + 7.5 – 2 = 8.5 ≠ 21
So, only the second option satisfies the R.H.S. of the given equation. Hence, the second option is correct.
Application | Eligibility | Selection Process | Result | Cutoff | Admit Card | Preparation Tips
Question : Directions: In the following question, correct the equation by interchanging two signs. 43 + 9 – 6 ÷ 3 × 8 = 50
Option 1: ÷ and ×
Option 2: + and ÷
Option 3: – and +
Option 4: – and ×
Question : Directions: In the following question, correct the equation by interchanging the signs given in the options. 7 × 6 + 5 – 12 ÷ 3 = 41
Option 1: + and ÷
Option 2: × and ÷
Option 3: + and –
Option 4: × and –
Question : Directions: Select the correct equation after interchanging the operators – and × and the numbers 4 and 3.
Option 1: 9 – 4 × 3 = 21
Option 2: 4 – 3 × 9 = 3
Option 3: 3 × 4 – 9 = 9
Option 4: 3 × 9 – 4 = 4
Question : Directions: Which two signs need to be interchanged to make the following equation correct? 48 – 8 ÷ 4 + 5 × 6 = 32
Option 1: × and +
Option 2: ÷ and –
Option 3: × and ÷
Option 4: ÷ and +
Question : Directions: Select the correct combination of mathematical signs to replace × signs and to balance the following equation. 5 × 9 × 3 × 6 × 8
Option 1: ×, +, =, ×
Option 2: ×, –, =, ×
Option 3: +, ÷, –, =
Option 4: +, ×, ÷, =
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile