Question 120

What's the error? Ramu evaluated the expression - 7 - (- 3) and came up with the answer - 10. What did Ramu do wrong?

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Solution

Ramu went wrong in solving - (- 3) and took it as - 3 only.
Correct answer = - 7 - (- 3) = - 7 + 3 = - 4

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