) 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?
Answer Posted / janardhana babu
PETER=X PAUL=42-X
DIFFERENCE BETWEEN TWO AGES IS (2X-42)[IF X IS GREATER THAN
42-X]
"Peter is twice as old as Paul was when Peter was
as old as Paul is now"
THIS STATEMENT SAYS THAT PRESENT AGE OF PETER=(2*PAUL) WHEN
PETER AGE =PAUL AGE...AND DIFFERENCE BETWEEN THE TWO AGES
WILL ALWAYS BE SAME WEN 'N' YEARS AGO OR HENCE..
SO EQUATION WILL BE
X = {42-X-(2X-42)}
PETER PAUL AGE WHEN peter age = paul age
AGE
by solving this equation you will get X=24(peter age)
| Is This Answer Correct ? | 11 Yes | 2 No |
Post New Answer View All Answers
Now i am doing RHCE (Red Hat Certified Engineer). Please give some interview questions of linux.
The day before yesterday was WEDNESDAY then the day after tomorrow is?
Hansie made the following amounts in seven games of cricket in India: Rs.10, Rs.15, Rs.21, Rs.12, Rs.18, and Rs.17(all figures in crores of course). Find his average earnings.
A dealer sells 3 sets at Rs.2400 each ,one at 20% gain and the other at 20% loss. what is the overall gain or loss.
Find the Next Series Nuumber 21, 463, 687, 238, 1134, ----
If the total distance of a journey is 120 km .If one goes by 60 kmph and comes back at 40kmph what is the average speed during the journey?
in a market 4 man are standing .the average age of the four before 4 years is 45, after some days one man is added and his age is 49. What is the average age of all?
There is square of side 6 cm .A circle is inscribed inside the square Find the ratio of area of circle to the squqre .
Two people X & Y walk on the wall of a go down in opposite direction. They meet at a point on one side and then go ahead. X after walking for some time, walks in opposite direction for 15 mtrs.Then again he turns back and walks in the original direction. What distance did Y walk before they met again, if X walks 11 mtrs by the time Y walks 8 mtrs.
Jack and Jill went up and down a hill. They started from the bottom and Jack met Jill again 20 miles from the top while returning. Jack completed the race 1 min a head of Jill. If the hill is 440 miles high and their speed while down journey is 1.5 times the up journey. How long it took for the Jack to complete the race ?
A person sold two articles for 80 /- each.with 20% profit on one article and 20% loss on another article, what is the loss / profit he will gain on both.
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.
Two trains 100 meters and 120 meters long are running in the same directions with speed of 72 km/hr and 54 km./hr. in how much time will the first train cross the second?
I need Matrix and Series questions with solutions.
A sum of money doubles itself in 4 years at simple interest, in how many years, it would become 7 times of itself?