A man being asked how much he gave for his watch, replied; If you multiply the price by 4, and to the product add 70, and from this sum subtract 50, the remainder will be equal to 220 dollars.  Choose the correct option:
A) 40	B) 50	C) 60	D) 70	E) None of these
Solution   Let the price of the watch be represented by x   This price is to be multiplied by 4, which makes 4x   To the product, 70 is to be added, making 4x + 70   From this, 50 is to be subtracted, making 4x + 70 - 50   Here we have a number of the conditions, expressed in algebraic terms; but have as yet no equation. We must observe then, that by the last condition of the problem, the preceding terms are said to be equal to 220.   We have, therefore, this equation 4x + 70 - 50 = 220   Which reduced gives x = 50.   Here the value of x is found to be 50 dollars, which is the price of the watch.   Answer 50
<result>B</result>
A man being asked how much he gave for his watch, replied; If you multiply the price by 4, and to the product add 70, and from this sum subtract 50, the remainder will be equal to 220 dollars.