Given the rationale, provide a reasonable question and answer. Step-by-step reasoning process: The t - shirt costs $10 more than the socks, so it costs $5 + $10 = $15. The jeans are twice the price of the shirt, so they cost 2 * $15 = $30.
 The question and answer:
Henry wants to buy a t-shirt, a pair of jeans and a pair of socks. The jeans are twice the price of the t-shirt, and the t-shirt is $10 more expensive than the socks. The socks cost $5. How much does Henry need to pay for the pair of jeans?
The answer is 30