Question

Maria has three children. There is two years age difference between each child. The total ages of all three children is 36 years. Tina is the youngest child. How old is Tina?

Let T = the age of Tina.

Which formula will calculate Tina's age?
A) 3T+2=36
B)T+2t+3t=36
C) t+(t+2)+(t+4)=36
D) t+2(t+2)+4(t+4)=36

Answer 1

Tina, the youngest child = t
The middle one = t + 2
The oldest one  = t + 4

Sum of all the 3 children's age is 36.
⇒t + (t + 2) + (t + 4) = 36       ←Formula to calculate Tina's age (Answer C)
t + t + 2 + t + 4 = 36  
3t + 6 = 36
3t = 30
t = 10

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Answer: Tina is 10 years old.
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Answer 2

Answer:

not sure but I think it is A

Step-by-step explanation:

hope this helps