Answer: The age of the twins is 10 years.
Step-by-step explanation:
Suppose the age of older sister be x
Let the age of twins sister be x-9, as they are born after 9 years.
Product of their ages be
Sum of their ages will be
According to question,
So, Age of older sister will be 19 years.
Age of the twins will be
Hence, the age of the twins is 10 years.
121,580 rounded to the nearest thousand would be 122,000
The definition of estimated sum and the actual sum are these: estimated sum means to form an approximate judgment of the total of 2 or more numbers. A<span>ctual sum means the real total of two or more numbers.</span>