Let's say S is the age of the youngest sister. Then the age of the middle sister is S + 1, and the age of the oldest sister compared to the youngest is S + 2 we have54 = S + (S+1) + (S+2)which is the same as54 = 3S + 3 divide both sides by 354 / 3 = S + 118 = S + 1 subtract one from both sides17 = S check54 = 17 + 18 + 19 Hope this helps!!! (May I have brainly plzzz
No Arithmetic sequence has terms which decrease or increase by the same amount for example 3,6,8,12 .... this sequence is geometric where the terms are obtained by multiplying previous term by 10
