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In a certain store, the price of five pens is equal to the price of a notebook. What is the cost of a ruler in this store?
(1) The cost of four pens and two notebooks is 10 dollars more than the cost of six rulers.
(2) The cost of seven notebooks is 25 dollars more than the cost of 15 rulers.
OA E
Source: Veritas Prep
(1) The cost of four pens and two notebooks is 10 dollars more than the cost of six rulers.
(2) The cost of seven notebooks is 25 dollars more than the cost of 15 rulers.
OA E
Source: Veritas Prep
