the infinite sum 1 + (3/4) + (5/16) + (8/64) + ....equals :
- 5/3
- 26/9
- 20/9
- 2
0 voters
plz help with this one number 5.........totally bugged....
find the sum of (1+1/1^2+1/2^2)^1\2 +
(1+1/2^2+1/3^2)^1\2 +..................... +
(1+1/2007^2+1/2008^2)^1\2
- 2007-1/2008
- 2008-1/2007
- 2007-1/2007
- 2008-1/2008
0 voters
how many 3 digit numbers are there whose sum is not greater than 16??
- 620
- 621
0 voters
One fourth of a certain journey is covered at the rate of 25 km/h.one third at 30 km/h & rest at 50 km/h.Find the average speed of whole journey.
A-600/53 km/h
B-1200/53 km/h
C-1800/53 km/h
D-1600/53 km/h
E-none of these
A batsman makes a score of 270 runs in the 87th innings and thus increases his average by a certain no. of runs that is a whole no. Find the possible values of the new average.
A-98
B-184
C-12
D-all of the above
Reminder when 2079! Is divided by 2081..??
base of the pyramid is a rectangle 40 m long and 20 m wide. the slant height of pyramid from mid-pt of shorter side of the base to the apex is 29m. what is the volume of pyramid?
there is a vast grassy farm in which there is a rectangular building of the farm-house whose length and breadth is 50 m and 40 m resp. A horse is tethered at a corner of house with tether of 80 m long. what is the maximum area that the horse can graze?
A dealer offers a cash discount of 20% and still makes a profit of 20%, when he further allows 16 articles to a dozen to a particularly sticky bargainer. How much percent above the cost price were his wares listed? [CAT1994]
a. 100%b. 80%c. 75%d. 66.66%"..when he further allows 16 articles to a dozen.." : pls explain the context of this line and give an approach to the above quest.
S and P take 7.5 days working together. However , if S and P work individually to complete the equal amount of work, it takes them 20 days to complete the job. How long will P alone take to do the job if S is more efficient than P?
The index of highest ower of 3 1011121314151617181920.........................6869 is
0
47
1
2
Hello people,
I wanted to ask you whether buying books like "Shakuntala Devi : puzzles to puzzle you" would be benefecial for enhancing LR and calculating skills?
Moreover, Plz suggest me the best "QUICK MATHS" book for CAT preparation....as my mental maths and calculations are not fast and quick.
Thanks
Q) In how many ways can 10 identical chocolates be given to 4 persons A,B,C,D such that A gets more than B? a) 120. b) 140. c) 160. d) None
P.S. Please give a detailed solution
The equations of two equal sides AB and AC of an isosceles train ABC are x+y=5 and 7x-y=3 resp.What will be the length of the intercept cut by the side BC on the Y axis ??
8
9/5
3/2
no unique solution
Hi , i have attached 4 possible BCs of which 2 pairs could be parallel
hence slope may vary
A line is represented by the equation 4x+5y=6 in the coordinate system with the origin (0,0). you are required to find the equation of the straight line perpendicular to this line that passes through the point (1,-2) [which is the coordinate system where the origin is at (-2,-2)]5x-4y=11
5x-4y=13
5x-4y=17
5x-4y=-3
found my mistake, thanks @zuloo @abhishekhenry
Can even and odd numbers be -ve ?
say -2 is even ?