On a journey across Delhi, a taxi averages 30 km/hr for 60% of the distance , 20 km/hr for 20% of it and 10 km/hr for the remainder. The average speed for the whole journey is ??
N=123123123.......300 digits.
Find remainder when N/99???? Approach???
Puys, Can anybody provide me Demystifying Number System by N K Sinha??...Its out of stock on flipkart and other sites....Thanks 😃
a survey of 300 respondents showed that 135 read business india, 125 read business today and 115 read business world. further, 42 read business india and business today, 48 read business today and business world and 43 read business india and business world and 30 read all three magazines. question :- if 15 respondents who were reading business india stop reading business imdia and instead start reading business today then what is the maximum number of respondents who will be reading only business india ? ans: 78. please share approach to solve such sums
What is the remainder when 4321 is divided by 321?
Method plz
Guys Recently I have completed my engineering this year and want to prepare for CAT 2013. I found the below link where I found that CAT 2013 Notification has released. I found study material also on this site.
Indian Institutes of Management (IIMs) are all set to conduct Common Entrance Test 2013 (CAT 2013) to measure the standards for admissions in various Management Courses available in all the 13 IIMs and other non-IIM top B-schools across the country, for the coming session.
Hi puys ..can some one tell me how to find the minima and maxima of y=(2x^2+3x+4)/(x^2+x+3)
three dies are thrown. what are the possible sets where the sum is less than that of 11?
x1+x2+x3
introducing an arbitary value x4 such that the sum x1+x2+x3+x4 = 11.
and x4 should not be 0, so x4 = x4' + 1
so 10+4-1C4-1 = 13C3
is my approach correct? @JanardanJakad
Rakesh rows downstream and Siddharth rows upstream. In 15 minutes,they re 2.25 km apart. rakesh then turns to follow Siddhath and after 30 min from the beginning,the boats rowed together 3.5 km. If the speed of Rakesh and Siddharth and the stream are constant at how many km/hr does the stream flow? a)3 b)2.5 c)2 d)5
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N is an even 3-digit number such that the last 3 digits of N^2 are N itself. What is the value of N?
there are two clocks.one of them gains 2min in 12 h and another loses 2 min in 36 h.Both are set right at 12 noon on Tuesday.What will be the correct time when both of them show the same time for next time?
a)12 night b)1.30 am c)10.30 am d)12 noon
if x no. of sweets are divided equally among 25 people , 8 are left and when divided among 28 people, 22 are left.
find x...
pls explain with answer
R walked down a descending escalator and took 40 steps to reach the bottom.S started simultaneously from the bottom,taking 2 steps for every one step taken by R.Time taken by R to reach the bottom from the top is the same as time taken by S to reach the top from the bottom. How many steps more than R did S take before they crossed each other?
Please post solutions.- cannot be determined
- 40
- 3
- 20
0 voters
In an acute angled triangle ABC, points 'D' and 'E' lie on sides BC and AC respectively, such that AE = EC. AD and BE intersect at point F. If the areas of triangles AEF and BDF are 9 cm2 and 3 cm2 respectively, then the area of triangle ABC (in cm2) is
a.) 27 b.) 45 c.) 33 d.) 36
Can someone give some other solution by using options, special cases or any other reasoning and shortcut?
If x>=y and y>1 then the value of expression log (basex)x/y+log(basey)x/y can never be??
'A', 'B', 'C', 'D' and 'E' are five robbers who rob a large pile of gold biscuits from a bank. Tired from their collective exploits, they retire for the day, deciding to distribute the gold among themselves in the next morning. However, at midnight, 'A' wakes up and knowing he cannot trust his accomplices, decides to take his share of the gold. He divides the gold into five equal piles and takes his share. However, there is one gold biscuit left over which he decides to leave as a souvenir. At 1 o'clock, 'B' wakes up and not realizing that 'A' has already taken his share, he divides the remainder of the pile of gold into five equal piles with one biscuit left over as a souvenir. 'B' then takes away his share. In the next consecutive hours, 'C', 'D' and 'E' each wake up and do exactly the same as 'A' and 'B'. In the morning, all the robbers wake up and try to look innocent. No one makes a remark about the diminished pile of gold and no one is honest to admit that they have already taken their share. Instead, they divide the remaining pile of gold up into five parts for the sixth time and find that there is yet again one gold biscuit left over which they leave as a souvenir. Question: Assuming that in each case there was no need to break a gold biscuit, how many gold biscuits did the robbers originally steal?
Need detailed solution to the question. I know the answer, but I am only able to reach halfway through the solution.
😠
If the lines x = a + m, y = –2 and y = mx are concurrent, what is the least possible value of |a|?
What is the minimum value of a^2 x + b^2 y + c^2 z if abxyz = 54c, where a, b, c, x, y and z are positive real numbers?