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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 tha…

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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 ?
  • A40 years
  • B30 years
  • C42 years
  • D36 years
Answer not set
0
CCommunity
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.
0
CCommunity
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.