(a) A green grocer had a profit of Rs 47 on Monday, a loss of Rs 12 on Tuesday and loss of Rs 8 on Wednesday. |
Find his net profit or loss in 3 days. |
(b) What is the additive inverse for integers? |
Answer:
(a) Profit is taken with positive sign and loss with negative sign, Monday = + Rs 47 Tuesday = ? Rs 12 Wednesday = ? Rs 8 Net profit or loss = Rs (47 ? 12 ? 8) = + Rs 27 ∴ Net profit of Rs 27 in three days. (b) zero
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