1.

50 people consume an average of 110 kg of rice in a week. If 20 more people join this group, how many kilogram of rice will be needed for a week?

Answer»

50 people    X1                110 kg  yi

50+20 =70      x2                   ?? Y2

no of people and no of kgs are in direct proportion

x1/y1 = x2/y2

when we cross multiply the formulae changes to 

x1y2 = x2y1

50 * y2 = 110 *70


y2 = 110 * 70/ 50

y2 = 154

therfore 154 kgs of rice is NEEDED for 70 people for a week




Discussion

No Comment Found

Related InterviewSolutions