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08 Nov 2018, 01:05
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Alice is twice as old as Brian and Cathy is 6 years younger than Brian. If Alice is a years old, how old is Cathy in terms of a ?
A. a + 6
B. a − 6
C. (a - 12)/2
D. (a + 12)/2
E. 2a − 6
A. a + 6
B. a − 6
C. (a - 12)/2
D. (a + 12)/2
E. 2a − 6
08 Nov 2018, 01:19
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Bunuel
Alice is twice as old as Brian and Cathy is 6 years younger than Brian. If Alice is a years old, how old is Cathy in terms of a ?
A. a + 6
B. a − 6
C. (a - 12)/2
D. (a + 12)/2
E. 2a − 6
A. a + 6
B. a − 6
C. (a - 12)/2
D. (a + 12)/2
E. 2a − 6
a=20 years.
A= 20.
B = 10
C = 16.
Option D matches.
Put the value in to the equation.
08 Nov 2018, 02:22
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Alice is twice as old as Brian and Cathy is 6 years younger than Brian. If Alice is a years old, how old is Cathy in terms of a ?
A. a + 6
B. a − 6
C. (a - 12)/2
D. (a + 12)/2
E. 2a − 6
Given relation: A=2b
selim : C is younger than b so eqn should be C=B-6
solve for C we get C= (a-12)/2
option C should be correct..
A. a + 6
B. a − 6
C. (a - 12)/2
D. (a + 12)/2
E. 2a − 6
Given relation: A=2b
selim : C is younger than b so eqn should be C=B-6
solve for C we get C= (a-12)/2
option C should be correct..
