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:- Reena and Shaloo are partners in a business. Reena invests Rs.35,000 for 8 months and Shaloo invests Rs.42,000 for 10 months. Out of a profit of Rs.31, 750, Reena’s share is
A. Rs. 9471
B. Rs. 12, 628
C. Rs. 18,040
D. Rs. 18,942
Recent Answer : Added by narendra On 2022-09-18 09:02:49:
B
Ques:- Five boys were climbing a hill. J was following H. R was just ahead of G. K was between G & H. They were climbing up in a column. Who was the second?
Ques:- A certain sum of money is invested for one year at a certain rate of simple interest. If the rate of interest is 3% higher, then the invest earned will be 25% more than the interest earned earlier. What is the earlier rate of interest?
Ques:- A certain sum of money doubles itself in 10 years in how much many years will it trible itself at the same rate?
Ques:- A can do half the work in one day where as B can do it full. B can also do half the work of C in one day. Ratio in their efficiency will be?
Recent Answer : Added by nq On 2022-11-06 15:57:05:
1:2:3 or 1:2:4
Ques:- A person pays a tax of 10%,if his salary increases by 10% he need to pay a tax of 15%.The total gain he obtains after increment in salary is 350Rs . What is his salary?
Recent Answer : Added by Admin On 2020-05-17 12:04:35:
7000
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Ques:- A football team played 60 matches out of which 30% were won by them. If they start winning all the next matches after how many matches will the average winning rate be 50% ?
Recent Answer : Added by Suman On 2021-10-07 15:41:23:
Matches played: 60.
Matches won: 30% of 60 => (60*(30/100)) = 18 matches.
Iterative approach:
On adding 1 to matches played and matches won, on every iteration until the win percentage gets to 50. So
19 / 61 = 0.3114754098360656
20 / 62 = 0.3225806451612903
21 / 63 = 0.3333333333333333
22 / 64 = 0.34375
…
…
…
…
Similarly,
41 / 83 = 0.4939759036144578
42 / 84 = 0.5
So, after 60th match 24 more matches has to be played and won to get 50% average winning rate.
Ques:- There N stations on a railroad. After adding X stations on the rail route 46 additional tickets have to be printed. Find N and X
Recent Answer : Added by Rishabh Gupta On 2022-03-09 16:33:47:
Each PAIR of stations means a PAIR of tickets (A to B and B to A)
23 is a prime number with only two factors, 1 and 23
so N = 23 and X = 1
Ques:- 3 cubes of metal whose edges are 9, 12 and 15 cm respectively, are melted and one new cube is made. Find the edge of the new cube?
Recent Answer : Added by Anna On 2021-10-22 09:13:17:
let a = 9 * 9 * 9;
let b = 12 * 12 * 12;
let c = 15 * 15 * 15;
sum = a + b + c;
edge = Math.cbrt(sum);
console.log(edge);
Ques:- A and B enter into a partnership for a year. A contributes Rs.1500 and B Rs.2000. After 4 months, they admit C, who contributes Rs.2250. If B withdraws his contribution after 9 months, how would they share a profit of Rs.900 at the end of the year?
A. 1 : 1 : 1
B. 1 : 2 : 3
C. 6 : 8 : 9
D. 8 : 6 : 9
Recent Answer : Added by narendra On 2022-09-18 09:03:22:
A
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Recent Answer : Added by Lee Jun Xian On 2022-03-09 16:29:03:
As fast as possible. For example, I will suitable with the working environment within one month.
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Ques:- Today is Tuesday. After 62 days it will be
A. Monday
B. Wednesday
C. Thursday
D. Sunday
Recent Answer : Added by Shankar On 2021-11-09 15:53:20:
Monday
7days for a week so 62÷7 remainder is 6 so
After Tuesday + 6days = monday
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Ques:- Given a collection of points P in the plane , a 1-set is a point in P that can be separated from the rest by a line, .i.e the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P)….
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Ques:- Find the odd man out:
1, 5, 14, 30, 50, 55, 91
A. 91
B. 55
C. 50
D. 5
Recent Answer : Added by Admin On 2022-09-23 19:18:43:
C. 50
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Ques:- Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
A. Fruit
B. Leaf
C. Flower
D. Tree
E. Trunk
Recent Answer : Added by Susanna On 2021-08-10 15:21:36:
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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