Question

plz help how to solve

Answer 1

19*7=133 .26*7=182. 133+182=315 .after 26 years average weight is 315/7= 35 .answet

Answer 2

Answer:

the sum of their ages will be 182+133= 315

Step-by-step explanation:

Since we are given that the average of the ages of 7 members of family = 19

Since $average = \frac{\text{sum of all ages}}{\text{no. of people}}$

⇒ $19= \frac{\text{sum of all ages}}{7}$

⇒ $19*7= \text{sum of all ages}$

⇒ $133= \text{sum of all ages}$

Since there are 7 members

So, after 26 years each person's age will increase by 26

So, Total age increased of 7 members = 26*7 = 182

Since the sum of their ages is 133

After 26 years the sum of their ages will be 182+133= 315