For 15 people-each has to pay Rs.20.For 20 people-each has to pay Rs.18. For 40 people-how much has each to pay ? - Just Crack Interview

For 15 people–each has to pay Rs.20.For 20 people–each has to pay Rs.18. For 40 people–how much has each to pay ?

For 15 people–each has to pay Rs.20.For 20 people–each has to pay Rs.18. For 40 people–how much has each to pay ?

Ques:- For 15 people–each has to pay Rs.20.For 20 people–each has to pay Rs.18. For 40 people–how much has each to pay ?
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2 Answers on this Question

  1. for 15 people = Rs.300
    i.e 15*20 = 300
    for 20 people = Rs.360
    i.e 20*18 =360
    increase in 5 people => Rs 60
    for 1 = 60/5 =12
    for 20 = 12* 20 = 240
    so for 40 people = 360 + 240
    = 600
    one person has to pay =Rs. 15
    i.e 600/40 = 15

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