Xiaofang's aunt complained that she didn't get a good chance because of her bad work. Xiaofang wants to persuade her. Would you please help her think of a famous saying in this respect? kuai!

Xiaofang's aunt complained that she didn't get a good chance because of her bad work. Xiaofang wants to persuade her. Would you please help her think of a famous saying in this respect? kuai!

There must be a way to get to the front of the mountain

It takes 40 seconds for Xiaohua to go from the first floor to the fifth floor. Xiaofang's speed is half that of Xiaohua. How long does it take for Xiaofang to go from the first floor to the seventh floor?

40 / (5-1) = 10 seconds 10 / 2 = 5 seconds 5 * (7-1) = 30 seconds

There are three investments in building a bridge. The first investment is 78% of the second investment, and the second investment is 89% of the third investment. It is known that the third investment is 600000 yuan more than the first investment. How many million yuan will be invested in building this bridge? (multiple solutions)

(1) 7 + 8 + 9 = 24, 60 ^ (924-724) = 60 ^ 224 = 720 (ten thousand yuan); (2) suppose the second investment x ten thousand yuan, x ^ 89-78x = 60, & nbsp; & nbsp; & nbsp; & nbsp; 14x = 60 & nbsp; & nbsp; 14x ^ 14 = 60 ^ 14 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 240; 240 × 78 + 240 + 240