Ques:- A man while going dowm in a escalator(which is miving down) takes 50 steps to reach down and while going up takes 125 steps. If he goes 5 times faster upwards than downwards. What will be the total no of steps if the escalator werent moving.
Recent Answer : Added by Admin On 2020-05-17 12:02:27:
let A goes up and B comes down.
assume A takes 1 step in 1sec.
hence,B takes 5 steps in 1sec.
50 steps ll be moved by A in 50/1=50secs
125 steps ll be moved by B in 125/5=25 secs
hence speed of escalator=(difference of no of
steps)/(difference of time)
speed=(125-50)/(50-25)= 3 steps/sec
hence during upward journey of 50secs by A,total steps=50 by
A and 150 by escalator..total=150+50=200
during downward journey of 25 secs by B,total steps=125 by B
and 75 by escalator..total=125+75=200steps.
ANS:200 steps
Ques:- X, Y and Z can do a work in 6, 8 and 12 days respectively doing the work together and get a payment of Rs.1800. What is Y’s share?
Ques:- The sum of the digits of a two-digit number is 12. The difference of the digits is 6. Find the number?
Recent Answer : Added by Shimna Nambidiyattil Viswambaran On 2021-06-26 07:03:57:
9 AND 3
Ques:- What is the 12th term of the series 2, 5, 8, …. ?
Recent Answer : Added by Mukesh On 2022-08-14 16:31:48:
a = 2
d = 5 – 2 = 3
Then 12th term is :
This in arithmetic progression
L = a + (12 – 1) d
L = 2 + 11 * 3
L = 2 + 33 = 35
Ques:- A salt manufacturing company produced a total of 5000 tonnes of salt in January of a particular year. Starting from February its production increased by 100 tonnes every month over the previous months until the end of the year. Find its average monthly production for that year?
Recent Answer : Added by albin On 2021-03-25 16:51:46:
516 tones
Ques:- The LCM of two numbers is 24. The GCF is 4. One number is 4 more than the other. What are the numbers.
Recent Answer : Added by Mayuri On 2021-07-08 16:28:56:
24*4= x(x+4)
solve this
answer is x=8
X+4= 12
Ques:- Three 6 faced dice are thrown together. The probability that exactly two dice show the same number on them is -.
Recent Answer : Added by Admin On 2022-09-28 18:05:55:
Let A, B and C be the three 6-faced dice.
Then, according to the question,
Since two dices has to be equal, that value can be any of the 6 faces, i.e., 6C1 cases.
Now for each case, 2 equal dices can be selected from 3 dices in 3C2 i.e., 3 ways.
And for each of the above, the third dice can have any of the 5 remaining faces
The possible outcomes are P(A)=61,P(B)=61,P(C)=65,P(A)=61,P(B)=65,P(C)=61 and P(A)=65,P(B)=61,P(C)=61
Hence the required probability = 61×61×65×6×3=21690=125
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Ques:- A boy has nine trousers and 12 shirts. In how many different ways can he select a trouser and a shirt?
Recent Answer : Added by Admin On 2022-09-27 18:20:20:
108
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Ques:- A and B can finish a work in 16 days while A alone can do the same work in 24 days. In how many days B alone will complete the work?
Recent Answer : Added by Evelyn Asumadu On 2021-09-22 16:57:03:
B will use 8days to work
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Ques:- If the product has fail can you sell that to customer?
Ques:- 1,2,3,5,?,10,15,30
Recent Answer : Added by Admin On 2020-05-17 12:04:34:
these r all factors of 30
1*30=30
2*15=30
3*10=30
5*6=30
like that
Ques:- What are some things you particularly liked about your last job?
Ques:- Would you prefer to stay with family or alone or colleagues?
Ques:- A bag contains five white and four red balls. Two balls are picked at random from the bag. What is the probability that they both are different color?
Recent Answer : Added by Akash Chandra Khan On 2022-01-08 16:06:55:
The probability will be
white ball = 5/9
red ball = 4/9
The answer can be 5/9 and 4/9 or 1
Ques:- A light bulb is hanging in a room. Outside of the room there are three switches, of which only one is connected to the lamp. In the starting situation, all switches are 'off' and the bulb is not lit. If it is allowed to check in the room only once to see if the bulb is lit or not (this is not visible from the outside), how can you determine with which of the three switches the light bulb can be switched on?
Ques:- A computer store regularly sells all stock at a discount of 20 percent to 40 percent. If an additional 25 percent were deducted from the discount price during a special sale, what would be the lowest possible price of a part costing $16 before any discount?
Ques:- Given a triangle ABC, how would you use only a compass and straight edge to find a point P such that triangles ABP, ACP and BCP have equal perimeters? (Assume that ABC is constructed so that a solution does exist.)
Recent Answer : Added by Admin On 2020-05-17 12:01:52:
The answer probably lies in finding the in-centre of the
traingle. Bisect all the angles of the triangles and the
point where these angle bisectors meet gives u the point P
Ques:- The average salary of 3 workers is 95 Rs. per week. If one earns Rs.115 and second earns Rs.65 how much is the salary of the 3rd worker.
Recent Answer : Added by Admin On 2020-05-17 12:01:34:
(115+65+x)/3=95
x=105
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Ques:- A car is filled with 4.5 gallons of fuel for a round trip . Car is taken 1/4 more than in going than coming up. What is the fuel consumed in coming up ?
Recent Answer : Added by Admin On 2020-05-17 12:00:30:
Fuel to go = x + (x/4)=5x/4
Fuel to come = x
now,
x+(5x/4) = 4.5
9x/4 = 4.5
9x = 18
x = 2 (Fuel to comeup)
Fuel to go will be:
2+(2/4) = 2 + (0.5) = 2.5
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let A goes up and B comes down.
assume A takes 1 step in 1sec.
hence,B takes 5 steps in 1sec.
50 steps ll be moved by A in 50/1=50secs
125 steps ll be moved by B in 125/5=25 secs
hence speed of escalator=(difference of no of
steps)/(difference of time)
speed=(125-50)/(50-25)= 3 steps/sec
hence during upward journey of 50secs by A,total steps=50 by
A and 150 by escalator..total=150+50=200
during downward journey of 25 secs by B,total steps=125 by B
and 75 by escalator..total=125+75=200steps.
ANS:200 steps