411 of a wooden block was painted green.
411 of it was painted grey. The remaining 30 cm of the wooden block was painted red.
- What fraction of the wooden block was painted red?
- What was the length of the wooden block?
(a)
Fraction of the wooden block painted red
= 1 -
411 -
411=
311(b)
Length of red part of the wooden block = 3 u
3 u = 30
1 u = 30 ÷ 3 = 10
Length of the wooden block
= 11 u
= 11 x 10
= 110 cm
Answer(s): (a)
311; (b) 110 cm