Home › CAT › Quantitative Aptitude › Ratio and Proportion › A hostel has food for 100 students for 20 days. …
A hostel has food for 100 students for 20 days. If 25 more join, it lasts:
A18 days
B16 days
C25 days
D15 days
Answer & Solution
Correct answer: B. 16 days
1. More students, fewer days.
2. 100 times 20 equals 125 times y.
3. y is 16 days.
_Source: NCERT Class 8 Mathematics, Chapter 13, Direct and Inverse Proportions._
Related questions
Those two workers, at that combined rate, finish the whole job in:A worker finishing in 5 hours and another in 20 hours together do what share of the job eaConverting two fifths of an hour into minutes gives:In work problems, the parts of the job done by each worker in one hour add up to:Flying into that same 30 mph wind, the same plane's ground speed would be:A plane's ground speed with a tailwind of 30 mph, if the plane itself flies at 150 mph, isOn that drive, Tony's interstate speed was:Tony drives 4 hours in all, 208 miles on the interstate and 40 on country roads, going 15