111 of a metallic rod was painted grey.
311 of it was painted green. The remaining 49 cm of the metallic rod was painted white.
- What fraction of the metallic rod was painted white?
- What was the length of the metallic rod?
(a)
Fraction of the metallic rod painted white
= 1 -
111 -
311=
711(b)
Length of white part of the metallic rod = 7 u
7 u = 49
1 u = 49 ÷ 7 = 7
Length of the metallic rod
= 11 u
= 11 x 7
= 77 cm
Answer(s): (a)
711; (b) 77 cm