Every table is more expensive than every chair. 60 yuan, buy six chairs 10 table * * * pay 1224 yuan. Table unit price (99 yuan), chair unit price (39 yuan).
Table tennis costs 50 cents and badminton costs 80 cents. Miss Wang bought these two kinds of balls 15, and spent 18 yuan 50 cents to buy (10) badminton (5).
Chicken and rabbit live in the same cage and have 72 feet. The number of chickens is 10 times that of rabbits, with (30) chickens and (3) rabbits.
5. Eight lambs and six chickens weigh 83.2kg. It is known that the mass of five chickens is equal to that of two lambs, each chicken weighs (3.2kg) and each lamb weighs (8kg).
6. I just bought 8 cents and 1 yuan stamps * *11and spent 10 yuan. There are (8) 8-cent stamps and (3) 65438 0 yuan stamps.
7. There are 50 nails of different sizes in the box. A * * * weighs 2 10g, each big nail weighs 5g and each small nail weighs 3g, so there are more big nails than small nails (10g).
8. In a knowledge contest, it is stipulated that you will get five points for a correct answer and two points for a wrong answer or a wrong answer. There will be ***20 questions in the whole paper, with 86 points for Xiao Ming and (18) correct answers.