Ques:- A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is?
Recent Answer : Added by A.C. On 2022-03-09 16:28:57:
8/15 left.
1/15 * 4 + 1/20 * 4 = 7/15
1 – 7/15 = 8/15
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Ques:- A cycle is bought for Rs.900 and sold for Rs.1080, find the gain percent?
Ques:- About convenience?
Ques:- Three boxes 1,2,3 contain values 3,17,34. Get 40 in box 1 in 3 steps.
Recent Answer : Added by Admin On 2020-05-17 12:02:04:
(34/17)*3+34
Ques:- The ratio of two numbers is 2:3 and the sum of their cubes is 945. What is the difference of number ?
Recent Answer : Added by Preet On 2021-08-10 15:21:38:
Let numbers be 2x, 3x
Given: (2x)^3 + (3x)^3 = 945
8x^3 + 27x^3 = 945
x = 3
Difference between numbers = 3x – 2x = x
Hence difference = 3
Ques:- Two computers each produced 48000 public utility bills in a day. One computer printed bills at the rate of 9600 an hour and the other at the rate of 7800 an hour. When the first computer finished its run, how many bills did the other computer still have to print?
Recent Answer : Added by vinita On 2022-08-14 16:33:14:
9000
Ques:- How did you know about this position/ vacancy?
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Ques:- What do you mean by sensex and nifty?
Ques:- A=> B means
Recent Answer : Added by Admin On 2020-05-17 12:02:18:
if A is true B has to be true
Ques:- x% of y is y% of ?(a) x/y(b) 2y(c) x(d) can't be determined
Ques:- The current of a stream runs at the rate of 4 kmph. A boat goes 6 km and back to the starting point in 2 hours, then find the speed of the boat in still water?
Ques:- In a Park, N persons stand on the circumference of a circle at distinct points. Each possible pair of persons, not standing next to each other, sings a two-minute song ? one pair immediately after the other. If the total time taken for singing is 28 minutes, what is N?
Recent Answer : Added by Admin On 2022-09-29 18:42:28:
Total number of pairs is NC2^{N}C_2NC2. Number of pairs standing next to each other = N. Therefore, number of pairs in question = NC2^{N}C_2NC2 – N = 28/2 = 14. If N = 7,
7C2 – 7 = 21 – 7 = 14….
N =7
Ques:- Here are infinite black and white dots on a plane. Prove that the distance between one black dot and one white dot is one unit?
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Ques:- A and B combinely can do a work in 4 days. If A alone can do a piece of work 6 days. In how many days B alone can do?
Recent Answer : Added by Admin On 2020-05-17 12:03:23:
say the work is w and let no of days taken by b is ‘x’ which
we have to calculate
so work done by a in one day is w/6
work done by b in one day is w/x
a and b together can do work in 4 days ie=(w/6)+(w/x)=(w/4)
solving equation x=12
so no of days taken by b=12
Ques:- A person was asked to state his age in years. His reply was, “Take my age three years hence, multiply it by 3 and then subtract three times my age three years ago and you will know how old I am.” What was the age of the person?
Ques:- Which is your dream company and why?
Ques:- If ?CERTAIN? is coded as ?XVIGZRM?, then how can ?MUNDANE? be coded in that language ? (A) NFMWZMX (B) VMZWMFN (C) NFMWZMV (D) MFMXZMV (E) None of these
Recent Answer : Added by althaf On 2022-08-14 16:31:50:
c
Ques:- A can do a piece of work in 15 days and B in 20 days. They began the work together but 5 days before the completion of the work, A leaves. The work was completed in?
Ques:- A+B+C+D=D+E+F+G=G+H+I=17 where each letter represent a number from 1 to 9. Find out what does letter D and Grepresent if letter A=4?
Recent Answer : Added by Eva On 2022-04-02 06:59:23:
D=5, G=1
Ques:- Out of 10 persons working on a project, 4 are graduates. If 3 are selected, what is the probability that there is at least one graduate among them?
Recent Answer : Added by Admin On 2022-09-28 18:37:01:
Out of 10 persons, 4 are graduates; so, (10 – 4) = 6 are under-graduates.
If there is no restriction, any three can be chosen from the ten in (10C3) = 120 ways.
Now, if all three chosen are under-graduates; it can take place in (6C3) = 20 ways.
Therefore, the probability that there will be no graduate among the three chosen = (20 / 120) = (1 / 6).
Therefore, the probability that there will be at least one graduate among the three chosen = {1 – (1 / 6)} = (5 / 6) = 0.8333.
Ques:- Two pipes A and B can fill a cistern in 20 and 30 minutes respectively, and a third pipe C can empty it in 40 minutes. How long will it take to fill the cistern if all the three are opened at the same time?
Ques:- X can do a piece of work in 40 days; Y can do the same in 30 days. X started alone but left the work after 10 days, then Y worked at it for 10 days. Z finished the remaining work in 10 days. Z alone can do the whole work in?
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:- About family and job profile?
Ques:- A train 110 meters long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?
Ques:- What motivates a person?
Recent Answer : Added by Pratiksha Landge On 2021-12-04 15:01:50:
That person’s struggle and dream to achieve something motivates the person.
8/15 left.
1/15 * 4 + 1/20 * 4 = 7/15
1 – 7/15 = 8/15