Math, asked by jotkaurp389, 2 months ago

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 sadnesslosthim
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)
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