Question
Neha can do a work in 45 days while Meha can do the same
in 90 days. If Neha works for 'q' days while Meha works for 'q + 2' days then one-sixth of the work is complete. Find the value of q.(calculate approximate value)Solution
ATQ, work rates: Neha's rate: 1/45Â of the work per day. Meha's rate: 1/90 of the work per day. Work done: Neha works for q days: (q/45) Meha works for q+2 days: {(q+2)/90}. Total work equation: 
Common denominator and simplify: 
  Hence, Solve for q: 
  or 4 days approximately
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