Interested to Buy Any Domain ? << Click Here >> for more details...
4 years ago father was 9 times older than his son. after 2
years father was 42.what is the present age of his son and
father.
- 6 Answers
- 10364 Views
- I also Faced
- E-Mail Answers
Answer Posted / skumarcpr8
let present father & son age is X and Y
from Question after 2 years father age is X+2
X+2=42
X=42-2=40..............(1)
agin,
from Question ago 4years father age is (X-4) & son age is (Y-4)
X-4=9(Y-4)
or X-4=9y-36
or X-9y=-36+4
or 40-9y=-32 [from eq. (1) x=40]
or -9y=-32-40
or y=-72/-9
or y=8
so present father age is 40 & present son age is 8 years
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
f(X)=4f(X-1) THEN VALUE OF X=
Two pencils costs 8 cents, then 5 pencils cost how much
how to retrieve the recent record from the database using sql query. suppose the table has the columns only ename,job,salary columns
Each row of letters or numbers has a rule connecting them. Write the next number or letterin the brackets. K , A , J , B , I , C , H , (_ _ _)
A man travelled from the village to the post-office at the rate of 25 kmph and walked back at the rate of 4 kmph. If the whole journey took 5 hours 48 minutes, find the distance of the post-office from the village
Two trains move in the same direction at 50 kmph and 32 kmph respectively. A man in the slower train observes the 15 seconds elapse before the faster train completely passes by him.
---- of a mutual instrument vibrate 6,8 & 12 intervals respectively. If all three vibrate together what is the time interval before all vibrate together again?
If a car starts from A towards B with some velocity due to some problem in the engine after travelling 30km.If the car goes with 4/5 th of its actuval velocity the car reaches B 45min later to the actual time. If the car engine fails ofter travelling 45km, the car reaches the destination B 36min late to the actual time , what is the initial velocity of car and what is the distance between A and B in km ans) 20 &
Which of the following does multithreading allow? A. several transactions that require the same program to use one copy of the program. B. many tasks to be allocated to the terminal. C. an audit trail of all files records from all files updated by a particular application
A, B ans C are three speakers. They have to speak randomly along with another 5 speakers in a function. A has to speak before B and B has to speak before C. What is the probability.
A class consists of 100 students, 25 of them are girls and 75 boys; 20 of them are rich and remaining poor; 40 of them are fair complexioned. The probability of selecting a fair complexioned rich girl is
f(f(x))=81 THEN VALUE OF X=
If x and x+10 are lengths containing right angle, what is the equation if area is 24 sq.cm
During a given week an author spends 1/4 of his time preparing first drafts, 3/8 of his time editing the drafts and the rest of the time in preparing final drafts. If he works 48 hours during the week, how many hours did he spend in preparing final drafts?
What is the selling price of a scooter? If the cost of the scooter is Rs 50 and a profit of 10% over selling price is earned.
