Peter and Paul are two friends. The sum of their ages is 35
years. Peter is twice as old as Paul was when Peter was as
old as Paul is now. What is the present age of Peter?
- 3 Answers
- 15515 Views
- TCS, I also Faced
- E-Mail Answers
Answer Posted / sumit jha
when ws peter as as paul is nw?? (x-y) years ago!!
so those years ago paul's age= y-(x-y) yrs
now qstn says peter is twice the age as paul ws then.
so x/2 = y-(x-y)
or x/2=2y-x
or x= 4y - 2x
or 3x = 4y
or y = 3/4x
rplacing d value of y in d equation x+y=35 we get answer as
-----
x=20
-----
y =15.
------
thus (x-y)=5 yrs ago y was 10 and x is twice that=20.
but x+y=35
| Is This Answer Correct ? | 32 Yes | 6 No |
Post New Answer View All Answers
A finishes a work in 12 days and B finishes same work in 14 days.If they work for a day alternately with A beginning, how many days will it take to complete the work?
A bike runs at the speed of 50 km/h when not serviced and runs at 60 km/h when serviced. After servicing the bike covers a certain distance in 6 h. How much time will the car take to cover the same direction?
which questions will be coming
In a typical motor cycle rally, every motor cycle has to reach a speed of 20 m/min within a minute and it increase its speed by 20 m/min and the sum was 1600 m/min. Four minutes later, a new motor cyclist started running in the race. After another two minutes, the motor cyclist with the speed of 400 m/min stopped due to injuries and again two new motor cyclist started running in the race. What is the current average speed?
A theif steals half the total no of loaves of bread plus 1/2 loaf from a backery. A second theif steals half the remaing no of loaves plus 1/2 loaf and so on. After the 5th theif has stolen there are no more loaves left in the backery. What was the total no of loaves did the backery have at the biggining.
In 80 coins one coin is counterfeit what is minimum number of weighings to find out counterfeit coin
A farmer has a farm square of 100 sq.m a cow is tied at one and with a rope of 10m length.assume pi-3.what is the area of land the cow can graze.
govern of irda,sebi and rbi
In a square, all the mid points are joined. The inner square is shaded.If the area of the square is A, what is the area of the shaded area?
how to learn aptitude quickly
G(0)=-1, G(1)=1, G(N)=G(N-1) - G(N-2), G(5)= ?
'X' liters of petrol can be filled in an automobiles tank. What part of full tank was removed, if 'Y' liters was removed when the tank was full?
HERE = COMES – SHE, (Assume s = 8), Find value of R + H + O
If P=Total number of components, Q = number of defective components .What is the % of non defective components?
It takes five minutes to pass a rumor from one person to two other persons. The tree of rumor continues. Find how many minutes does it take spread the rumor to 768 persons.
