1. **Problem statement:** Gauri initially has some amount of Nepali Rupees (NPR). Given exchange rates are 51 Rs 132 and £1 = Rs 168. Gauri has enough NPR to buy $5000. After a 10% devaluation of NPR, we need to find: (a) The initial amount of NPR Gauri has. (b) The new exchange rate of NPR to Pound Sterling after 10% devaluation. (c) The amount of Pound Sterling Gauri can buy after 10% devaluation and paying 5% commission. 2. **Given data and formulas:** - Initial exchange rate: £1 = Rs 168 - NPR devaluation: 10% means new NPR value = 90% of old value - Commission: 5% on the amount of NPR used to buy pounds - Amount to buy in dollars: $5000 (assuming $1 = £1 for simplicity or ignoring dollar-pound conversion as not specified) 3. **Step (a): Find initial NPR amount Gauri has** - Gauri can buy $5000 at the initial rate. - Since £1 = Rs 168, and assuming $1 = £1 (or ignoring dollar-pound conversion), the NPR needed to buy $5000 is: $$ \text{NPR} = 5000 \times 168 = 840000 $$ 4. **Step (b): Find new exchange rate after 10% devaluation** - Devaluation means NPR loses 10% value, so new NPR per £ is: $$ 168 \times 0.9 = 151.2 $$ 5. **Step (c): Calculate pounds Gauri can buy after 10% devaluation and 5% commission** - After devaluation, NPR Gauri has is still 840000 (initial amount), but its value is less. - Commission is 5%, so effective NPR for buying pounds is: $$ 840000 \times 0.95 = 798000 $$ - Pounds Gauri can buy: $$ \frac{798000}{151.2} \approx 5278.57 \text{ pounds} $$ **Final answers:** - (a) Initial NPR = 840000 - (b) New exchange rate = 151.2 NPR per £ - (c) Pounds bought after devaluation and commission = 5278.57 pounds