Sec square 75 degree + cot square 15 degree
2 answers:
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Answer:
Age of Grandma = 59 years.
Age of great Grandma = 81 years
Ages of Mother = 38 years
Age of Daughter = 15 years
Step-by-step explanation:
Given:
Total years they all lived = 193
We need to find the ages of all lady.
Solution:
Let the age of grandma be 'x'.
Now Given:
The daughter is 44 less than the grandma's age.
So we can say that;
Age of the Daughter =
The great-grandma is 22 more than the grandma's age.
So we can say that;
Age of the great grandma =
The mother is 80 less than twice the grandma's age.
So we can say that;
Age of the mother =
Now we can say that;
Total years they all lived is equal to sum of age of grandma, Age of the Daughter, Age of the great grandma, Age of the mother.
framing in equation form we get;
Adding both side by 102 we get;
Dividing both side by 5 we get;
Hence Age of Grandma = 59 years.
Age of great Grandma =
Ages of Mother =
Age of Daughter =