6.13 The age of Ashwini's mother is 5 years more than twice of Ashwini's age. After 10 years, her mother's
age will be 8 years less than thrice her age. Find the present age of Ashwini and her mother.
Answers
Answer:
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Step-by-step explanation:
Chemistry is the scientific discipline involved with elements and compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances.
SOLUTION
GIVEN
- The age of Ashwini's mother is 5 years more than twice of Ashwini's age.
- After 10 years, her mother's age will be 8 years less than thrice her age.
TO DETERMINE
The present age of Ashwini and her mother.
EVALUATION
Here it is given that the age of Ashwini's mother is 5 years more than twice of Ashwini's age.
Let present age of Ashwini = x
∴ Present age of Ashwini's mother = 2x + 5
After 10 years,
Ashwini's mother's age
= 2x + 5 + 10
= 2x + 15
Ashwini's age = x + 10
So by the given condition
2x + 15 = 3x - 8
Hence present age of Ashwini = 23 years
Present age of Ashwini's mother
= ( 2 × 23 ) + 5 years
= 46 + 5 years
= 51 years
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