2 ms·
just summing it up, v{i} are ladies speeds: MA = v1*x = v2*9 MB = v1*4 = v2*x → v1 = 9*v2/x → 9*4*v2/x = v2*x → x = 6
by 11235813213455 5y ago
just summing it up, v{i} are ladies speeds:
MA = v1*x = v2*9
MB = v1*4 = v2*x
→ v1 = 9*v2/x
→ 9*4*v2/x = v2*x
→ x = 6