a dog takes 4 leaps for every 5 leaps of a hare but 3
leaps of a dog are equal to 4 leaps of the hare .compare
their speeds(.......... please give explanation....)
Answers were Sorted based on User's Feedback
Answer / kukku
x=vel of d
y=vel oh h
t1=time taken by d
t2=time taken by h
we have 4t1=5t2..............(1)
also
3xt1=4yt2....................(2)
comparing 1 and 2
x/y=16/15
Is This Answer Correct ? | 152 Yes | 17 No |
Answer / srikanth puli
5*3 = 15,
4*4 = 16...
dog speed = 16 units
hare speed = 15 units
Is This Answer Correct ? | 64 Yes | 14 No |
Answer / monk
let 3 leap of dog = x = 4 leap of hair
let time taken by dog to take three leaps be 't'
dog takes 4 leap for every 5 leap of hair
so for every one leap of dog hair take 5/4 leaps
hence time taken by hair to take 3 leaps = (4/5)*t
time taken by hair to take 4 leaps =(4/5)*(1/3)*4*t=(16/15)t
now
speed of dog'Vd'=x/t
speed of hair'Vh'=x*15/16t
hence Vd:Vh = 16:15
Is This Answer Correct ? | 47 Yes | 13 No |
Ans is 16:15.
Given that 3 Leap of dog=4 Leap of hare (means they travel same distance)
3 Ld = 4 Lh
Initially they said that 4 leaps of dog are equal to 5 leaps of hare.
so, speed of Dog=(Distance of dog 4Ld)/time.
similarily,speed of hare = (distance of hare 5Lh)/time.
now compare speeds
Sd/Sh=[4Ld/t] / [5Lh/t]
we get Sd/Sh=4Ld/5Lh
where,Ld/Lh=4/3
Sd/Sh=16/15
Is This Answer Correct ? | 27 Yes | 5 No |
Answer / shristi gour
Given
3dogs= 4cats
Or
Dog/ cat= 4/3
Let cat's 1leap= 3 metres
And dog's 1 leap= 4 metres
Then,
Ratio of speed of cat and dog. =3*5/4*4 = 15:16
Is This Answer Correct ? | 15 Yes | 10 No |
Answer / pritesh moure
Let 1 leap of dog= x meter
1 leap of hare= y meter
So distance covered by 3 leaps of dog & 4 leaps of hare are equal
i.e. 3x=4y, x/y =4/3........(i)
Let time taken by 4 leaps of dog be 't' which is equal to time taken by 5 leaps of hare.
So time taken to cover 1 leap
By dog= t/4
By hare= t/5
Now Speed= (Distance covered in 1 leap)/ (Time taken to cover 1 leap)
Speed of dog(S1) = x/(t/4)=4x/t
Speed of hare(S2) = y/(t/5)=5y/t
So S1/S2 =(4x/t)/(5y/t)= 4x/5y=(4×4)/(5×3)= 16/15. (x/y=4/3 by (i) )
Ans: 16/15.
Is This Answer Correct ? | 5 Yes | 2 No |
Answer / shani
dog 3 leaps = hare 4 leaps
taking lcm = 12, so both taking 12.
dog 1 unit =4
& hair 1 unit = 3.
so, dog taking 4 leaps =12+4 =>16.
hair taking 5 leaps =12+3 =>15.
ratio of speed =16/15.
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / surya
i get this question from rs agarwal in that ans is 16:15 but
here all of you tell different answers i am just confuse to
see these all
Is This Answer Correct ? | 2 Yes | 10 No |
let us assume
speed of dog D speed of hare H
leap of dog X leap of hare Y
now
a dog takes 4 leaps for every 5 leaps of a hare
let time T
in time T
dog =4X/D=T hare=5Y/H=T
3 leaps of a dog are equal to 4 leaps of the hare
3Y=4X
so
3Y/D=5Y/H=T
so D/H=3/5
Is This Answer Correct ? | 7 Yes | 17 No |
Answer / vicky pep
according to the second data the dog ll finish .75 of leap
for every 1 leap of hare, so dog have to run faster than
hare to take 4 leap for every 5 leap.
Is This Answer Correct ? | 3 Yes | 15 No |
if a car starts from A towards B with some velocity due to some problem in the engine afetr travelling 30 km .if the car goes 4/5 th of its of actual velociteythe car reaches B 45 min later to the actual time.if the car engine fails after travelling 45km the car reaches the destination B 36min late to the actual time ,wat is the initial velocity of car and what is the distance between A and B on km.
please send me previous year solved papers of clerical aptitude of clerk grade bank exam
A person went to shop and asked for change for 1.15 paise. But he said that he could not only give change for one rupee but also for 50p, 25p, 10p and 5p. What were the coins he had ?
(Words not repeated exactlybut question is this) Digit sliding means if there is a number 1627, after digit sliding it will be 7162. Say a lowest positive integer with unit digit as z, after digit sliding a new number is acquired which four times the original number before digit sliding. How many digits do the original number have?
Side of rhombus is 5cm and sum of lengths of diagonals is 12cm. what is the area of rhombus?
There are some 20 Basketball players & 30 Football players, and 25 cricket players. 1 of them plays all the three games. 8 of them plays at least two games. They are 50 altogether. How many of them plays none of the games.
who starts golden quadrilateral project ?
Asish was given Rs. 158 in denominations of Rs 1 each. He distributes these in diff bags, such that ne sum of money of denomination betn 1 and 158 can be given in bags. The min no. of such bags reqd :
0.512 * 18902358 =?
if the first 3 no.s are 1,3,8...so on (fibonacci series) den at which postion will you get 143?
A new apartment complex purchased 60 toilets and 20 shower heads. If the price of a toilet is three times the price of a shower head, what percent of the total cost was the cost of all the shower heads?
a person who decided to go weekend trip should not exceed 8 hours driving in a day average speed of forward journey is 40 mph.due to traffic in sun days the return journey average speed is 30 mph.how far he can select a picnic spot.