0 vote
Correct the following equation by interchanging the two signs. 20 + (2 × 3)2 - 6 ÷ 4 = 21.5
Correct the following equation by interchanging the two signs.
20 + (2 × 3)2 - 6 ÷ 4 = 21.51). + and ×
2). × and -
3). + and -
4). None of the above.
2 answers
4 vote
Given equation is 20 + (2 × 3)2 - 6 ÷ 4 = 476
Let’s check each of the option,
1. Interchanging + and ×
Equation will become, 20 × (2 + 3)2 - 6 ÷ 4 = 498.5
2. Interchanging × and -
Equation will become, 20 + (2 - 3)2 × 6 ÷ 4 = 21.5
3. Interchanging + and -
Equation will become, 20 - (2 × 3)2 + 6 ÷ 4 = 8 ≠ - 32.5
Hence, by interchanging × and -, we will get the correct answer.1 vote
Given equation is 20 + (2 × 3)2 - 6 ÷ 4 = 476
Let’s check each of the option,
1. Interchanging + and ×
Equation will become, 20 × (2 + 3)2 - 6 ÷ 4 = 498.5
2. Interchanging × and -
Equation will become, 20 + (2 - 3)2 × 6 ÷ 4 = 21.5
3. Interchanging + and -
Equation will become, 20 - (2 × 3)2 + 6 ÷ 4 = 8 ≠ - 32.5
Hence, by interchanging × and -, we will get the correct answer.