At what temperature on the fahrein heit scale will the reading be double of the reading on the celsius scale

According to the question,the condition is F=2C .Hence,by the relation between C and F .....F=32+1.8×C......Substitute F=2C in this relation and you will get....... 0.2C=32.... Therefore, C=160 and hence F=320. Celsius reading=160 .... Therefore,Fahrenheit = 320