Aanya had 20.80 m of cotton piece. She cut 7 smaller pieces, each of length 0.81 m from it. How many meters of cotton ( approx) were left?

A string is 148 cm long. It is cut into 3 pieces. The longest piece is 4 times as long as the middle sized piece and the shortest piece is 77 cm shorter than the longest piece. Find the length of the shortest piece (in cm).

A rope is 89 cm long. It is cut into 3 pieces. The longest piece is 3 times as long as the middle-sized piece and the shortest piece is 44 cm shorter than the longest piece. Find the length of the shortest piece (in cm).

In a 80 m race, Amar can give a start of 5 m to Akbar and a start of 20 m to Anthony. In the same race, how much start can Akbar give to Anthony?