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

Answer / g.barathi

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

Is This Answer Correct ?    86 Yes 11 No

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

Answer / anamika

FOR 15 = RS.20
FOR 20 = RS.18
FOR 25 = RS.16
FOR 30 = RS.14
FOR 35 = RS.12
FOR 40 = RS.10

Is This Answer Correct ?    25 Yes 14 No

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

Answer / pravs

here k is constant
15(k)+x=20*15
20(k)+x=20*18

on solving we get k=12 , x=15*8
thus answer is 15

Is This Answer Correct ?    4 Yes 5 No

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

Answer / mathumetha

15*20=300
20*18=360(increased by 60)
for 40 = 360+60=420
420/40=10.5
for 40 each person has to pay 10.5

Is This Answer Correct ?    0 Yes 1 No

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

Answer / kartik

here k is constant
15(k)+x=20*15
20(k)+x=20*18

on solving we get k=12 , x=15*8
thus answer is 15

Is This Answer Correct ?    0 Yes 1 No

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

Answer / hai

for 15---20---300
for 20---18---360
increase in 5 people discount is 40 (since 20*20=400
original amt but paid 360 i.e discount is 40)

for 40 people increase in people is 25 (40-15=25)
for 25 people disc is 25*40/5 =200

actual amt for 40 people is 40*20=600 deducting disc amt
paid by 40 people is 400
so each pays 10/-

Is This Answer Correct ?    4 Yes 6 No

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

Answer / akhil

9

Is This Answer Correct ?    0 Yes 4 No

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

Answer / g.k.rathi

FOR 15 = 300
FOR 20 = 360
FOR 5 INCREASE = 40 DISCOUNT
FOR 1 = 8
FOR 20 = 20*8 = 160
TOTAL =40*20 =800 - 160 = 640
FOR 40 = 640
FOR 1 = 640 / 40
= 16

Is This Answer Correct ?    1 Yes 6 No

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

Answer / g.barathi

for 15 = 300
for 1 = 20
for 20 = 360
for 1 = 18
for 20 * 20 = 400 actual
but = 360
dedution = 40
for 20 = 40
for 1 = 2
for 40 = 40 *2 = 80
total = 40* 20 =800 - 80
=720
for 1 = 720/40 = 18

Is This Answer Correct ?    0 Yes 6 No

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

Answer / anjali singla

If there are 15 people each has to pay Rs 20 , this means
total expenditure is Rs 300.
For 20 people total expenditure is Rs 360.
With increase in 5 person increase in expenditure is Rs 60 .
Therefore with increase of 20 person total expenditure
increase is Rs 240.
Hence total expenditure is Rs 400.
Total no of person is 40.
Amount to be paid by each person is Rs 12.50.

Is This Answer Correct ?    2 Yes 22 No

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