Question

There are 40 houses in a neighborhood. Company X provides electricity to 1/8 of the houses. Company Y provides electricity to 2/5 of the houses. Company Z provides electricity to the remaining houses. In this neighborhood, company Y provides electricty to -

A. 5 houses
B. 8 houses
C. 16 houses
D. 19 houses
E. 21 houses

Answer 1

j:19

Explanation:

J. 19 houses

Explanation:

Since there is a total of 40 houses in the neighborhood.

So, Number of houses Company X provide electricity is:

and, Number of houses Company X provide electricity is:

Hence total number of houses Company Z provide electricity is: 40 - (5 + 16) = 40 - 21 = 19

⇒ Total number of houses Company Z provide electricity = 19