Question

Rita decided to decorate her wall with three colours red, blue and orange. she wants to use blue colour for 2/5 part of the wall, red colour for 2/3 of the remaining part and orange for the rest. (a) what fraction of the wall be coloured red (b) what fraction of the wall will be coloured orange (c) if the wall has an are of 25 square metres, what area of the wall will be orange coloured​

Answer 1

a). Fraction of the wall be colored red - 2/3

b). Fraction of the wall be colored orange = 1/5

c). Area of the wall be colored orange = 5 sq. meter

Step-by-step explanation:

a). Given that,

The part of the wall that she wants to be colored blue = 2/5

Remaining part after blue = 1 - 2/5

= 3/5

The part of the wall that she wants to be colored red = 2/3 of 3/5

= 6/15

= 2/5

The remaining part to be colored orange = 3/5 - 2/5

= 1/5

so,

∵ The fraction of the wall will be red  = 2/5

b). The fraction of the wall will be colored orange = 1/5

c). Given that,

Area of the wall = 25 sq. m

fraction of the wall colored orange = 1/5

so,

∵ The area of the wall colored orange = 25 * 1/5

= 5 sq. meter

Learn more: find the fraction

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