The total of the ages of A, B and C is 80 years. What was the total of their ages three years ago ? (A, B ਅਤੇ C ਦੀ ਉਮਰਾਂ ਦਾ ਜੋੜ 80 ਸਾਲ ਹੈ। ਤਿੰਨ ਸਾਲ ਪਹਿਲਾਂ ਉਹਨਾਂ ਦੀਆਂ ਉਮਰਾਂ ਦਾ ਜੋੜ ਕਿੰਨਾ ਸੀ?) * 77 83 71 89
Answers
Answered by
130
Given that: The total of the ages of A, B and C is 80 years.
Need to find: What was the total of their ages three years ago ?
Solution:
Let's say that,
- Age of A = a years
- Age of B = b years
- Age of C = c years
ATQ,
↪a + b + c = 80
↪ ( a - 3 ) + ( b - 3 ) + ( c - 3 )
↪a - 3 + b - 3 + c - 3
↪ ( a + b + c) - 3 - 3 - 3
↪ ( a + b + c ) - 9
↪ 80 - 9
↪ 71
_________
- Henceforth, their ages three years ago was 71. (option c)
Similar questions