Simple math problem class 6 (1) has 60 more red flowers than yellow flowers during the Chinese New Year. The number of yellow flowers is one third of that of red flowers. How many flowers are red and yellow? Question 1: Let the number of yellow flowers be x, then there is

3*x=x+60，

Solution: x=30, that is, 30 yellow flowers, 90 red flowers, *** 120 flowers.

Question 2: If the number of basketballs is X, then there are

20=x+x* 1/4

Get x= 16, which means buying 16 basketballs.

Question 3: If the price of C vase is X, then there is.

18/ 15*x=2/5*24

The solution is x=8.

Question 4: If the original price is X, then there is.

(x+x*30%)*0.8-x=26.4

X=660 yuan.