In a camp, there is enough flour for 300 persons for 42 days. How long will the flour last if 20 more persons join the camp?

In a camp, there is enough flour for 300 persons for 42 days. How long

1.	In a camp, there is enough flour for 300 persons for 42 days. How long will the flour last if 20 more persons join the camp?
Answer» ata :-In a camp, there is enough flour for 300 persons for 42 days.20 more persons join the camp.Solution :-According to given → 300 × 42 = K ....[1]{Quantity of flour and persons are constant hence we take K}LET, remaining days after for joining of 20 persons be 'x'.→ { 300 + 20 } × x = K ....{2}Now, from eq. [1] & eq. [2] → 300 × 42 = { 300 + 20 } × x→ 300 × 42 = { 300 + 20 } × x→ 12600 = 320 × x→ x = 12600/320→ x = 39.375 or 39 DAY (APPROX)Hence,flour will last for 39 day for 20 more persons in the camp.