Answer:
The number of each kind of apartment in the building is 130 .
Step-by-step explanation:
Given as :
The total number of floor in a building = 15
The number of apartment on each floor = 26
So, The total number of apartment = 26 × 15 = 390
The number of kinds of apartment in the building is 3 , i.e 1-bedroom , 2-bedroom , 3-bedroom
Let The number of each kind of apartment in building = x
So, According to question
The number of each kind of building = ![\dfrac{\textrm Total number of apartment }{number of kinds of apartment}](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Ctextrm%20Total%20number%20of%20apartment%20%7D%7Bnumber%20of%20kinds%20of%20apartment%7D)
or, x = ![\frac{390}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B390%7D%7B3%7D)
∴ x = 130
Hence The number of each kind of apartment in the building is 130 . Answer