Question

38. 12 men and 16 women together can complete a work in 4 days. It takes 80 days for one man alone to complete the same work, then how many days would be required for one women alone to complete the same work? RRB NTPC (Phase 1) 2016 (1) 160 (2) 150 (3) 130 in (4) 175

11th - 12th Class

Maths

Solution

157

4.0 (1 ratings)

( frac{12}{M}+frac{16}{w}=frac{1}{4} ) ( M / W ) - days taken by Iman/women to complete werk ( M=80 ) days ( frac{3 pm x+16=frac{16}{4}}{frac{20.80}{w}=frac{1}{4}-frac{3}{4}} ) ( frac{16}{w}=frac{5-3}{20} ) ( frac{16}{w}=frac{7}{20} frac{1}{10} ) (1) 160 ( w=160 ) days