If the work done by (x-3) men in (2x+1) days :

If the work done by (x-3) men in (2x+1) days and the work done by (2x+1) men in (x+4) days are in the ratio 3:10, then what is the value of x?

  1. 3
  2. 6
  3. 9
  4. 12
Anurag Mishra Professor Asked on 17th December 2015 in Maths.
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1 Answer(s)

Answer:  (2) 6 

Solution:-
According to the question,
(X – 3) (2 X + 1) /(2 X + 1) (X + 4) = 3/10
(X – 3)/(X + 4) = 3/10
10 X – 30 = 3 X + 12
10 X – 3 X = 12 + 30
7 X = 42
X = 42/7
X = 6

Thus, the value of X is 6.

Hence, the  correct answer is option (2) 6.

 

Anurag Mishra Professor Answered on 17th December 2015.
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