Interested to Buy Any Domain ? << Click Here >> for more details...
) Peter and Paul are two friends. The sum of their ages is
42 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?
- 9 Answers
- 25606 Views
- TCS, I also Faced
- E-Mail Answers
Answer Posted / shona
peter paul
present age X Y
whenPeter was Y Z
as old as Paul is now
(suppose before n years)
Peter(X) is twice(2) as old as Paul(Z) was when Peter(Y) was
as old as Paul(Y) is now => X=2Z
=>X-u=Y & Y-u=Z
i.e 2Z-u=Y u=Y-Z........(2)
u=2Z-y.....(1)
equating 1 & 2
2Z-Y=Y-Z
3Z=2Y
Z=2Y/3..........(3)
given
sum of their ages is 42
i.e
X+Y=42
2Z+Y=42
substituting from (3)
2*(2Y/3)+Y=42
7Y/3=42
Y=42*3/7
Y=18
so X=24
=> peter's age is 24
| Is This Answer Correct ? | 39 Yes | 4 No |
Post New Answer View All Answers
An equilateral triangle of sides 3 inch each is given. How many equilateral triangles of side 1 inch can be formed from it?
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?
The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?
chief : tribe :: governor :
A batsman scored 18 runs in his 18th innings and that makes his average 18. Find his average upto the 17th innings?
Ajay can build a house in 16 days and Barry can do the same job in 12 days. With help of Chintu, they did the job in 4 days only. How many days Chintu can do the job?
From the below mentioned options choose the number that comes to 15 when divided by 4 and added by 9?
A positive integer which when added to 1000 gives a sum which is greater than 10.06 when it is multiplied by 100 this positive integer is __.
Three men goes to a hotel to stay ,the clerk says $30 per room/day so all the three plans to stay in one room so each pays $10.After some time the clerk realises that he made a mistake of collecting $30 but the room cost only $25,there fore he decides to return $5 to them so he calls the room boy and gives him $5 asking him to return. The room boy keeps $2 with him and he returns only $3($1 for each). Now Totally all have paid $9 each($27)+room boy $2 which is equal to $27.where did $1 go,who has made the mistake?
in pure milk if 20% replaced by water and in this again 20% is replaced by water and again 20% is replaced by water then what is the praportion of milk in that mixture
Square side 7 cm. Find the area 4 equal circles of the circle lying drawn at the…
Radha, Geeta & Revathi went for a picnic.After a few days they forgot the date,day and month on which they went to picnic.Radha said that it was on Thursday,May 8 and Geeta said that it was Thursday May 10.Revathi said Friday June 8.Now one of them told all things wrongly,others one thing wrong and the last two things wrongly.If April 1st is tuesday what is the right day,date and month?
What are all the java technical questions?
Lucia is a wonderful grandmother and her age is between 50 and 70. Each of her sons have as many sons as they have brothers. Their combined ages give Lucia's present age.what is the age?
The price of coffee increases by 20%, how much percent consumption of coffee should be reduced by Reema so that the expenditure on coffee remains the same.
