1. 10 Computer Operators can compose 120 pages in 2 hours. How many operators should work, if the job is to be done in 30 minutes ?

2. In a hostal of 50 girls ; there is food provision for 40 days. If 30 more girls join the hostal, the provision will last for:



1.Using the formula, M1×D1W1=M2×D2W210×2120=M2×12120M2=40 computer operators.2.We have the provision of food for 50 persons for 40 days.When 30 more persons join, then total persons = 80Let x be the number of days for which the provision for food lasts.Now, 50 × 40 = 80 × xx = 50 × 4080 = 25

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1) 40 computer operators
2) 25 days
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