A starts from a place at 11.00 am and travels at a speed of
4 kmph , B starts at 1.00 pm and travels with speeds of 1
kmph for 1 hr , 2 kmph for the next hr , 3 kmph for the
next hr and so on. At wht time will B catch up with A ?
Answer Posted / vivek kumar 2k6 bit mesra
lets say it takes time = T hr + t(fraction)hour
then for for T hours distance traveled by A = 4(T+2)
and that by B = T(T+1)/2
also Dist travelled by A > dist by B .......in T hours as in T+t hours it B reaches to A
4(T+2)>T(T+1)/2
-1.815 < T < +8.815
so integral value of T= 8 hours
So in 8 hr A travelled 4(8+2)=40
B travelled 8(8+1)/2=36
so this lag in distances will be covered up in t minutes
now speed of B will be 9 in the 9th hour
so, 9t-4t=4
t=4/5hr
=48 minutes
So the total time taken is T + t
= 8hr + 48 min
So answer will be 1pm+8:48 = 9:48pm............Ans
Is This Answer Correct ? | 14 Yes | 1 No |
Post New Answer View All Answers
Four concentric circles are given. The radius of 1st circle is x. Next is 2x, then 3x and 4x. Given that area between 2nd and 1st is A and 4th and 3rd circles being B. Find ratio of A to B
Four Members A, B, C, D are playing a game .A person losing a game should double the amount of others .B, C, D are losing in order after three games .The amount after 3 games are A&B having 40,D is having 16&C 80. Who started with small amount of money?
The sum of the digits of a two digit number is 8.When 18 is added to the number, the digits are reversed. Find the number?
There are 8 stamps, 4 Red and 4 Green. There are three logicians also. One moderator sticks thow stamps each on the forhead of each logician such that each of them can see all the stamps except those on his forhead and the two in moderator's pocket. Then the moderator asked each whether he knows the colors of the stamps he wears? Then the answeres were: A: "No" B: "No" C: "No" A: "No" B: "Yes" What were the colours of the stamps that B wears?
In a group of 15 students,7 of them have studied Marathi, 8 of them have studied History, and 3 have not studied either. How many students studied both Marathi and History?
There are 200 employees in a company. An external vendor is chosen to Serve coffee twice a day. 100 coffee cups were offered by the company but as an incentive to have the cups in tact at the end of the day, the company offered 30 paise for every cup remained safely and charged 90 paise for every broken cup. At an end of a day, the vendor received Rs. 24. How many cups did the vendor break? 10, 20, 8, 5?
WHAT IS THE NUMBER OF ZEROS AT THE END OF THE PRODUCT OF THE NUMBERS FROM 1 TO 100
If the operation,^ is defined by the equation x ^ y = 2x + y,what is the value of a in 2 ^ a = a ^ 3
in a school for a student out of a 100 he got 74 of average for 7 subjects and he got 79 marks in 8th subject. What is the average of all the subjects?
Find the next series number 1, 1, 2, 3, 6, 7, 10, 11, ?
If D is adjacent to F then who is adjacent to C?
sqrt(0.16)+cubic root(0.027) equals
Financial aptitude
There are two trees in a lawn. One grows at a rate 3/5 of the other in 4 years. If the total growth of trees is 8 ft. What is the height of the smaller tree after 2 years
One man brought pen and book from 250 and he sold both at 10% profit on pen and 20% loss on book and finally he gained 40% what is the value of pen