Answers

2016-02-19T17:11:31+05:30
Amount of wheat consumed per person per day = 54000/(3*30)
= 600 g
For 18 days, 600 * x= 54000. ( x is the total no. Of people)
x= 54000/600
x= 90 people.
But there were 3 people in the beginning
Therefore, new members= 90-3
=87
0
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2016-02-19T17:22:40+05:30
No. of friends=3     ,     x  
no. of days=   30   ,     18             inverse
x=3*30/18
x=90/18
x=5
2 members were added
1 5 1