9 = 8 = 7 = 6

9 = 8 / 9 9 = 7 / 9 18 = 6 / 9 27

RELATED INFORMATIONS

1. In a shopping mall, all electrical appliances are sold at a 95% discount. Xiaohui bought a TV set with 2470 yuan. How much is the original price of this TV set?
2. In an electrical appliance store, there is a promotion activity on the 11th National Day. The original price of a color TV is 2988 yuan, but now the price has been reduced by 288 yuan. How much of the original price is the current price
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5. Xiaoming's family has a TV, a washing machine and two lights. It is known that the current passing through them is 200mA, 1a, 300mA and 250mA respectively. If the circuit current of Xiaoming's family is not more than 3a, can these appliances be used at the same time?
6. A classmate's home is equipped with a TV, a washing machine and two lights. The normal working current is 200mA, 1a, 300mA and 25mA respectively. If the current in the circuit is not allowed to exceed 3a, how many lights can he install at most?
7. There are five lights in a classmate's home, and the current of each lamp is 150mA. There are also TV sets, refrigerators, fans and washing machines, which work at the same time They are 300mA, 1.5mA, 200mA and 1a. If the current in the trunk road is not allowed to exceed 3a, can these electrical appliances be used at the same time? Why? emergency
8. There is a TV set, a refrigerator, an electric fan and two identical lamps in the home. Their working current is 150 respectively. There is a TV set and an ice cream in the home There is a TV set, a refrigerator, an electric fan and two identical lights in the home. Their working currents are 150 mA, 1.5 A, 300 Ma and 100 Ma respectively. If the current on the trunk road is not allowed to exceed 2.8 A, how many of the same lights can Nanwu use in this trunk road?
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15. After the ice turns into water, its volume will be reduced by one eleventh. After the water turns into ice, how much will its volume increase?
16. The volume of water increases by 1 / 10 when it forms ice. How much does it decrease when it becomes water?
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