Answer:
A = 2.18m, B = 1.94m
Explanation:
first of all, convert 240mm to metres. 240mm = 0.24m.
now, A is 0.24m longer than B.
that is, A = B + 0.24
B = A - 0.24.
A + B = 4.12
A + (A - 0.24) = 4.12
2A - 0.24 = 4.12
2A = 4.12 + 0.24 = 4.36
A = 2.18.
B = A - 0.24 = 2.18 - 0.24 = 1.94.
so, A = 2.18m and B = 1.94m