Question

The floor of a rectangular room has 72 tiles of equal size 1/3 of the tiles are black in colour , 2/8 of them are white in colour , other are gray . find the total no of black and white tiles . what part of total tiles are gray in colour . Class 6​

Answer 1

Answer:

Total number of white and black colour tiles are 42 tiles .5/ 8 part of total tiles are grey in color.

Step-by-step explanation:

Given :

Total number of tiles = 72

Number of black colour tiles = 1/3 of total tiles

                                                = (1 /3 ) × 72 = 72 / 3=24 tiles

Number of white colour tiles = 2 / 8 of total tiles

                                                = ( 2/ 8 ) × 72 = 144 / 8 =1 8 tiles

Total no. of black and white tiles = no. of black + no. of white tiles

                                                      = 24 + 18=42 tiles

number of grey colour tiles = total tiles - no. of white and black tiles

                                             = 72 - 42 = 30 tiles

Part of grey tiles = no. of grey tiles /total no. of tiles

                            = 30 /72 = 5/8 part