Two ropes, A and B, are * * * 560m. After using a quarter of the total length of rope A, the two ropes have the same length. How long are the original two ropes?

102×4.5

7.8×6.9+2.2×6.9

5.6×0.25

8×(20- 1.25)

1) 127+352+73+44 (2)89+276+ 135+33

( 1)25+7 1+75+29 +88 (2)243+89+ 1 1 1+57

9405-2940÷28×2 1

920- 1680÷40÷7

690+47×52-398

148+3328÷64-75

360×24÷32+730

2 100-94+48×54

5 1+(2304-2042)×23

42 15+(436 1-7 16)÷8 1

(247+ 18)×27÷25

36-720÷(360÷ 18)

1080÷(63-54)×80