17/(2/3)=5 1/2 (meters) is the total length, and then multiplied by the total length 1/3, the answer is 5 1/6.
2. Pricing is in 6 yuan. Supermarket A launched "buy five get one free" and bought five bottles. Actually, it is six bottles, and the average bottle is 30/6=5 (yuan).
Supermarket B is on sale, 1 minus 5, a bottle of 6-6 *( 1/5)= 4.8 yuan.
5 & gt4.8
So supermarket b is cheap.