Question 65

At present, Ami’s age is twice Dio’s age and Cami is two years older than Ami. Two years ago, the respective ratio between Dio’s age at that time and Cami’s age at that time was 4 : 9. What will be Ami’s age four years hence ?

Solution

Let Ami,Dio and Cami's ages be A , D and C.
A =2D
C=A+2
C-2 = A = 2D
D-2 : C-2 = 4 : 9
D-2 : 2D = 4 : 9
9(D-2)= 8D
9D - 18 = 8D
D = 18
D = 18
A = 36
4 years hence Ami's age will be 40.
Option A is the correct answer.

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SBI PO 3 July 2016 Shift 1

At present, Ami’s age is twice Dio’s age and Cami is two years older than Ami. Two years ago, the respective ratio between Dio’s age at that time and Cami’s age at that time was 4 : 9. What will be Ami’s age four years hence ?

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