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Which two signs should be interchanged to make the below equation mathematically correct?
75 ÷ 5 × 15 - 3 + 10 = 60
  • a)
    -, +
  • b)
    -, ×
  • c)
    -, ÷
  • d)
    ×, ÷
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Which two signs should be interchanged to make the below equation math...
1) -, +
Given equation: 75 ÷ 5 × 15 - 3 + 10 = 60
After interchanging ‘-, +’, we get:
L.H.S = 75 ÷ 5 × 15 + 3 - 10
= 15 × 15 + 3 - 10
= 225 + 3 - 10
= 228 - 10
= 218 ≠ R.H.S
2) -, ×
Given equation: 75 ÷ 5 × 15 - 3 + 10 = 60
After interchanging ‘-, ×’, we get:
L.H.S = 75 ÷ 5 - 15 × 3 + 10
= 15 - 45 + 10
= 25 - 45
= - 20 ≠ R.H.S
3) -, ÷
Given equation: 75 ÷ 5 × 15 - 3 + 10 = 60
After interchanging ‘-, ÷’, we get:
L.H.S = 75 - 5 × 15 ÷ 3 + 10
= 75 - 25 + 10
= 85 - 25
= 60 = R.H.S
4) ×, ÷
Given equation: 75 ÷ 5 × 15 - 3 + 10 = 60
After interchanging ‘×, ÷’, we get:
L.H.S = 75 × 5 ÷ 15 - 3 + 10
= 25 - 3 + 10
= 35 - 3
= 32 ≠ R.H.S
Hence, ‘-, ÷’ is the correct answer.
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Which two signs should be interchanged to make the below equation math...
1) -, +
Given equation: 75 ÷ 5 × 15 - 3 + 10 = 60
After interchanging ‘-, +’, we get:
L.H.S = 75 ÷ 5 × 15 + 3 - 10
= 15 × 15 + 3 - 10
= 225 + 3 - 10
= 228 - 10
= 218 ≠ R.H.S
2) -, ×
Given equation: 75 ÷ 5 × 15 - 3 + 10 = 60
After interchanging ‘-, ×’, we get:
L.H.S = 75 ÷ 5 - 15 × 3 + 10
= 15 - 45 + 10
= 25 - 45
= - 20 ≠ R.H.S
3) -, ÷
Given equation: 75 ÷ 5 × 15 - 3 + 10 = 60
After interchanging ‘-, ÷’, we get:
L.H.S = 75 - 5 × 15 ÷ 3 + 10
= 75 - 25 + 10
= 85 - 25
= 60 = R.H.S
4) ×, ÷
Given equation: 75 ÷ 5 × 15 - 3 + 10 = 60
After interchanging ‘×, ÷’, we get:
L.H.S = 75 × 5 ÷ 15 - 3 + 10
= 25 - 3 + 10
= 35 - 3
= 32 ≠ R.H.S
Hence, ‘-, ÷’ is the correct answer.
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Which two signs should be interchanged to make the below equation mathematically correct?75 ÷ 5 × 15 - 3 + 10 = 60a)-, +b)-, ×c)-, ÷d)×, ÷Correct answer is option 'C'. Can you explain this answer?
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