Two trains started simultaneously from the same point in same direction, one at the speed of 100 km/hr and other at a speed of 50 km/hr but second train increases its speed at 10 km/ hr after every
hour .After how many hours would the second train catch first train?
how many 3 digit numbers have less than 5 factors:
0 voters
Hi All,
Below is a percentage table which I found somewhere -
SUBTRACTED ADDED
4 4.16(1/24) 3.86(1/26)
5 5.26(1/19) 4.76(1/21)
10 11.11(1/9) 9.09(1/11)
12.5 14.28(1/7) 11.11(1/9)
15 17.55 13
20 25 16.67(1/6)
25 33.33 20(1/5)
30 42.8 23
40 66.67(2/3) 28
50 100 33.33(1/3)
60 150 37.5(3/8)
Questions:
1. Can someone please explain me how to interpret this table and how to apply this in calculations?
2. If is it possible to make my own table as such(If that makes sense)
Thanks.
find last two digits of (1!+2!+3!+......100!)^2
amitabh covered a distance of 96km two hours faster than he had planned to. this he achieved by travelling 1km more every hour that he intended to cover in 1h15min. what was the speed at which amitabh travelled during the journey?
a.16kph b.26kph c.36kph d.30kph
approach pls
Only a single rail track exists between stations A and B on a railway line. One hour after the northbound super fast train N leaves station A for station B, a south-bound passenger train S reaches station A from station B. The speed of the super fast train is twice that of a normal express train E, while the speed of a passenger train S is half that of E. On a particular day, N leaves for B from A, 20 min behind the normal schedule. In order to maintain the schedule, both N and S increased their speeds. If the super fast train doubles its speed, what should be the ratio (approximately) of the speeds of passenger train to that of the super fast train so that the passenger train S reaches exactly at the scheduled time at A on that day?
(a) 1 : 3 (b) 1 : 4 (c) 1 : 5 (d) 1 : 6
In a number system consisting of 11 digits there is a digit $ in between 5 & 6 what is the value of 9$ in the decimal number system??
Friends pls provide your answer with calculation steps
Find the remainder when the sum 3^100 + 3^200 + 3^300 + ..... + 3^10000 is divided by 26?
Thanks in advance
Find maximum power of 2 in 100!! (Double factorial of 100)
?
Find the remainder when 5^80 is divided by 167
Probability that A and B can win a race is 1/5 and 1/2 respectively. What is the probability that a) either will win b) neither will win?
25th
http://imgur.com/dYNldkd
A BIT DIFFICULT LR ...or maybe easy dunno...try
http://s1.postimg.org/sqrwsl3vj/screenshoth_78.jpg
any shorter approximation of the graphical area approach ?