A,B and C are three persons with ages 26 years,27 years and 28 years respectively.in what ratio must they invest money at 10% p.a compound yearly so that each gets same sum at the age of his retirement (i.e at the age of 58 years).
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A invest a and amount a1
B invest b and amount b1
C invest c and amount c1
amount= sum(1+R/100)^y
amount are equal so
ratio of A and B
a(110/100)^32=b(110/100)^31
a(110/100)=b
a/b=10/11
ratio of B and C
b(110/100)^31=c(110/100)^30
b/c=10/11
a:b:c=100:110:121
B invest b and amount b1
C invest c and amount c1
amount= sum(1+R/100)^y
amount are equal so
ratio of A and B
a(110/100)^32=b(110/100)^31
a(110/100)=b
a/b=10/11
ratio of B and C
b(110/100)^31=c(110/100)^30
b/c=10/11
a:b:c=100:110:121
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