IBM
Company
Numerical Ability
Age Problem
A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, the how old is B?
A. 7 B. 8
C. 9 D. 10
E. 11
Read Solution (Total 8)
-
- B+2=A
2C=B
A+B+C=27
=>(B+2)+B+(B/2)=27
=>B=10
- 9 years agoHelpfull: Yes(9) No(0)
- answer is 10
let c =x then b=2x and a will be 2x+2.
5x+2=27
x=5 i.e c=5. - 9 years agoHelpfull: Yes(7) No(1)
- A is thief. as no any thief agree that he is thief... so all the 3 statement that "i did not do" is false statement.
hence statement "B did not do.", " C did not do." and "I donot know who did it."are true statement
that is B and C are not thief so A will b thief. - 12 years agoHelpfull: Yes(4) No(9)
- b is thief because
c didnot do (t) ,he didnot know (f)
b did not do(f),c did not do(t)
a did not do(t),b didnot do (f)
By using this we can say B is theif
- 10 years agoHelpfull: Yes(3) No(0)
- D. ans 10
let c=x
b=2x
c=2x+2
x+2x+2x+2=27
x=5
b=2*5
b=10 - 9 years agoHelpfull: Yes(1) No(0)
- assume c=x,then b=2x,a=2x+2;
2x+2+2x+x=27=>5x+2=27=>x=5
here b=2x so,b=10 - 9 years agoHelpfull: Yes(0) No(0)
- A = 2 + B
B = 2C
A+B+C = 27
then ,B = 10
D. 10 is solution - 9 years agoHelpfull: Yes(0) No(0)
- Let C's age be x years. Then, B's age = 2x years. A's age = (2x + 2) years.
(2x + 2) + 2x + x = 27
5x = 25
x = 5.
Hence, B's age = 2x = 10 years. - 9 years agoHelpfull: Yes(0) No(0)
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