Mr. Shah decided to walk down the escalator of a tube
station. He found that if he walks down 26 steps, he
requires 30seconds toreach the bottom. However, if he steps
down 34 stairshe would onlyrequire 18 seconds to get to the
bottom. If the timeis measured fromthe moment the top step
begins to descend to thetime he steps offthe last step at
the bottom, find out the height ofthe stair way in steps?
Answer Posted / siva
If he walks 26 steps , he requires 30 sec to reach bottom. If he walks 34 steps he requires 18 sec to reach bottom.
So walking (34-26)=8 steps he requires (30-18)= 12 secs.
In one sec he walks ( 8/12)= 2/3 steps
34 steps requires 18 sec
so 2/3* 18 =12
In remaining 18 secs he walks 12 steps 34+12 = 46 steps
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
Two candles of equal lengths and diff thickness are there. The thicker one last 6 hrs ,the thinner 2 hrs less than thicker .Ramesh lit the two candle at same time , when he went to bed he saw that thicker one is twice the length of thinner one. For how long Ramesh lit the candles.
Light glows for every 13 seconds . How many times did it glow between 1:57:58 and 3:20:47 am.
plz send Karur Vysya Bank Clerk exam previous model papers to saraphin21@gmail.com....
in a question ,last part has, the ages of two people has the ratio of 6:6 and by adding the numbers we get 44, after how many years the ratio would be 8:7?
There are 40 seats in a bus. People agree to share the money for the number of seats. The total money comes to 70.37. How many seats were free?
If p/q = 5/4 , then 2p+q= ?
Total balls z,red balls N remaining are blak balls,then %of black balls equal to
A man has Rs 2. He wins or loses Re 1 at a time. If he wins he gets Re 1 and if he loses the game he loses Re 1. He can loose only 5 times. He is out of the game if he earns Rs 5.Find the number of ways in which this is possible?
Find the missing word(...),ayw,gec,mki,sqo
If a square is formed by the diagonal of the square as an edge, what is the ratio between the area?
The price of raw materials has gone up by 15%, labour cost has also increased from 25% of the cost of raw material to 30% of the cost of raw material. By how much percentage should there be a reduction in the usage of raw materials so as to keep the cost same
A clock showing 6 o'clock takes 30 secs to strike 6 times.How long will it take to strike 12 at midnight?
Convert the decimal number 310 to the base 6.
it has 20 mixutre conatins mil and water in the ratio 3:5,replace 4 litres of mixture with 4 litres of water what is the final ratio of milk and water.
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 actual velocity the car reaches B 45min 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 , what is the initial velocity of car and what is the distance between A and B in km