Q. Yasmin is the youngest of four siblings whose ages are consecutive integers. If the sum of their ages is 126, find Yasmin's age.Answer:
Denote Yasmin's Age: Let's denote Yasmin's age as y years. Since the siblings have consecutive ages, the other three siblings would be y+1, y+2, and y+3 years old. We are given that the sum of their ages is 126 years.The equation representing the sum of their ages is:y+(y+1)+(y+2)+(y+3)=126
Combine Like Terms: Now, let's combine like terms to simplify the equation: 4y+6=126
Subtract to Isolate: Next, we subtract 6 from both sides of the equation to isolate the terms with y: 4y+6−6=126−64y=120
Divide to Solve: Now, we divide both sides of the equation by 4 to solve for y: 44y=4120y=30
Final Age Calculation: Since y represents Yasmin's age, and we have found y to be 30, Yasmin is 30 years old.
More problems from Partial sums of geometric series