Question : Directions: Which of the following interchanges of signs would make the given equation correct? 5 – 4 ÷ 2 + 7 × 3 = 14
Option 1: ÷ and +
Option 2: × and −
Option 3: − and ÷
Option 4: + and ×
Correct Answer: × and −
Solution : Given: 5 – 4 ÷ 2 + 7 × 3 = 14
Replace the given symbols in the options one by one with the original symbols in the given equation. Let's check the options – First option: ÷ and + 5 – 4 ÷ 2 + 7 × 3 = 14 ⇒ 5 – 4 + 2 ÷ 7 × 3 ⇒ 5 – 4 + 0.28 × 3 ⇒ 5 – 4 + 0.84 ⇒ 1.84 ≠ 14 Second option: × and − 5 – 4 ÷ 2 + 7 × 3 = 14 ⇒ 5 × 4 ÷ 2 + 7 – 3 ⇒ 5 × 2 + 7 – 3 ⇒ 10 + 7 – 3 ⇒ 14 Third option: − and ÷ 5 – 4 ÷ 2 + 7 × 3 = 14 ⇒ 5 ÷ 4 – 2 + 7 × 3 ⇒ 1.25 – 2 + 7 × 3 ⇒ 1.25 – 2 + 21 ⇒ 20.25 ≠ 14 Fourth option: + and × 5 – 4 ÷ 2 + 7 × 3 = 14 ⇒ 5 – 4 ÷ 2 × 7 + 3 ⇒ 5 – 2 × 7 + 3 ⇒ 5 – 14 + 3 ⇒ –6 ≠ 14
Here, only the second option satisfies the equation. Hence, the second option is correct.
Result | Eligibility | Application | Selection Process | Cutoff | Admit Card | Preparation Tips
Question : Directions: Select the correct combination of mathematical signs to replace * signs and to balance the following equation. (9 * 8 * 7) * 13 * 5
Question : Directions: Select the correct combination of mathematical signs to replace * signs and to balance the following equation. 86 * (5 * 8 * 4) * 9 * 85
Question : Directions: Which two signs need to be changed to make the following equation correct? 64 – 8 ÷ 3 + 7 × 5 = 40
Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation. (130 * 4) * 21 * 485 * (28 * 2)
Question : Directions: Select the correct combination of mathematical signs that can sequentially replace the * signs from left to right to balance the following equation. 15 * 5 * 24 * 140 * 7 * 71
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile