Infosys
Company
Numerical Ability
Age Problem
When Arthur is as old as his father Hailey is now, he shall be 5 times as old as his son Clarke is now. By then, Clarke will be 8 times older than Arthur is now. The combined ages of Hailey and Arthur are 100 years. How old is Clarke?
Read Solution (Total 4)
-
Pls check whether this statement is correct.
By then, Clarke will be 8 times older than Arthur is now. - 12 years agoHelpfull: Yes(8) No(1)
- let father's present age=x, arthur's age=y and clark's age=z
x=5z
x+y=100
z+(x-y)=8y
solving above three eqs, x= 88.2353
not sure about the solution...plz check!!! - 12 years agoHelpfull: Yes(5) No(1)
- Let us assume clerk age as = X
then Arthur age will be = 5x (when arthur is as old as his father)
also Haily age will be same =5x
Sum of ther ages = 5x+5x=100
therfore x=10
That is clerk age is 10 - 11 years agoHelpfull: Yes(3) No(2)
- Let assume clerk age as = X
then Arthur age will be = 5x
also Haily age will be same =5x
Now Clerk age becomes 8(5x)=40x
Sum of ther ages = 5x+5x=100
therfore x=10
That is clerk age is 10 - 8 years agoHelpfull: Yes(1) No(0)
Infosys Other Question
There are five persons A,B,C,D,E whose birthdays occur at the consecutive days. Birthday of A is some days or day before C & birthday of B is exactly the same days or day after E. D is two days older than E. If birth day of C is on Wednesday then find out the birthdays of other.
Prove, that if you write down the numbers, 1,2,...,101 in an arbitrary order,you can pick 11 numbers that make a monotonous sequence if they are considered in the order they were written down.