1. **Problem Statement:** A project contract is worth 1000000 Chinese Yuan. The exchange rate is 1 Yuan = 19.20 Nepali Rupees. After the contract, the Nepali Rupee devalued by 10%. We need to find: a) The contract amount in Nepali Rupees. b) The new exchange rate after devaluation. c) How much more the contractor should add to complete the project on time. 2. **Formula and Important Rules:** - To convert from Yuan to Nepali Rupees, multiply the amount in Yuan by the exchange rate. - Devaluation by 10% means the Nepali Rupee loses 10% of its value, so the new exchange rate increases by 10%. - Additional amount needed is the difference between the new cost and the original cost. 3. **Step-by-step Solution:** **a) Contract amount in Nepali Rupees:** $$\text{Amount in NPR} = 1000000 \times 19.20 = 19200000$$ **b) New exchange rate after 10% devaluation:** Devaluation means 1 NPR is worth 10% less, so 1 Yuan now equals: $$19.20 \times (1 + 0.10) = 19.20 \times 1.10 = 21.12$$ **c) Additional amount contractor should add:** New contract amount in NPR: $$1000000 \times 21.12 = 21120000$$ Additional amount needed: $$21120000 - 19200000 = 1920000$$ **Final answers:** - Contract amount in NPR: $19200000$ - New exchange rate: $21.12$ - Additional amount to add: $1920000$