Question

detailed answer please​

Answer 1

Answer:

27.5 days

Step-by-step explanation:

more men, food will be sufficient for less no of days

more days, food will be sufficient for Less men

men, m are inversely proportional to days, d

=> m1*d1=m2*d2

120×50=(120+40)×d

d=120×50/160=3/4 ×50=150/4=37.5

after 10 days 40 more joined

=> no. of days food will be sufficient = 37.5-10=27.5