roht was 4 times as old as his son 8 years ago. after 8
years , rohit will be twicw as old as his son. what are
their present ages?(**** please give explanaion***)
Answer Posted / dillip kumar dash
let's assume that rohit's present age is x and his son's
present age is y. 2 equations formed using these.
x-8 = 4(y-8) -> represtning 8 ago from present time.
x+8 = 2(y+8) -> representing 8 yrs ahead from now.
subtract 2nd equation from 1st. the resulting equation w'd
be: 2y-48=-16
y=16
x=2y+8
=40
hence Rhit's present age is 40, his son's present age is 16
yrs.
| Is This Answer Correct ? | 68 Yes | 6 No |
Post New Answer View All Answers
A sales person multiplied by a number and get the answer 3. Instead of that number divided by 3. What is the answer she actually has to get. (1/3) * 1 *3 =3 so the no= 1 divided by three.
If two pencils cost 8 cents, then how much do 5 pencils cost?
Two trains in the same direction at 50 & 32 kmph respectively. A man in the slower train observes the 15 seconds elapse before the faster train completely passes him. What is the length of faster train ?
sir i need rrb secunderabad goodsguard previous exam papers
The minimum token cost is Rs. 100, which grants the token holder to travel up to a distance of 10 miles. And for every additional mile travelled, the charge is Rs. 10. A minimum luggage weight of 10 kg is not charged, after which it is charged at Rs. 1 per kg. During a specific journey, suppose you carry a weight of 'k' kg, and a distance of 'p' miles is travelled, which equation will indicate the correct total charge to be paid by the traveller?
After spending 2/3 of his salary on rent and food items and 1/4th of the remaining on transportation, Rajesh has 6000 with him. How much did he pay on transportation?
A company manufactures x refrigerators cp.(9000+500x0 sp=500x; what must be the value of x so that atlas the amount gained After selling is equal to the amount spent on production
Suhana gets 70% in Maths, 80% in Physics. To get an overall of 75% how much should she get in English.
The mean and the variance of a binomial distribution are 4 and 2 respectively. Then the probability of 2 successes is?
The time showed by an analog clock at a moment is 11 am then 1234567890 hours later it will show the time as:
Only boys aged 16 wear coats. Boys aged 15 go to watch football.some more statements are given. What can be said about those who are watching football ? (age and costume).
cgl2010 tier 2 ki merit kya rhgi
Find the missing word(...),ayw,gec,mki,sqo
Find the longest palendrom in a string? Example Input: abfgerccdedccfgfer Output: ccdedcc i want a solution in C/C++ language
Two distinct no's are taken from 1,2,3,4......28. Find the probability that their sum is less than 13