Final answer:
Using the exchange rates given, 1 Qatari Riyal equals NC 28.98 and 50 Hong Kong dollars equals NC 681; hence, 50 Hong Kong dollars is approximately equivalent to 23.5 Qatari Riyals. The options provided in the question do not match this calculation.
Step-by-step explanation:
To solve how many Qatari Riyals will be equal to Hong Kong dollars 50, first, we need to find the exchange rate between Qatari Riyals and Hong Kong dollars using the given information:
- 1 Qatari Riyal = NC 57960 / 2000
- 1 Hong Kong dollar = NC 13.62
Now, calculate the value of 1 Qatari Riyal in Nepalese Currency (NC):
1 Qatari Riyal = 57960 / 2000
1 Qatari Riyal = NC 28.98
Next, we use the exchange rate of the Hong Kong dollar to find the value of 50 Hong Kong dollars in NC:
50 Hong Kong dollars = 50 * 13.62
50 Hong Kong dollars = NC 681
Finally, to find how many Qatari Riyals are equal to NC 681, we use the value of 1 Qatari Riyal in NC:
Qatari Riyals = NC 681 / NC 28.98 per Riyal
Qatari Riyals = 23.5 approximately
Therefore, 50 Hong Kong dollars is approximately equivalent to 23.5 Qatari Riyals, which is not among the provided options (a) 1440 Riyals, (b) 1350 Riyals, (c) 1450 Riyals, (d) 1320 Riyals. Hence, it seems there might be a misunderstanding or an error in the question or the options provided.