How can we do quick approximations? Can anyone explain?
1) Test taking strategy
2)Your estimation of cat2015 with regard to cat 2009(trendwise)
3)Any insights on LRDI area.
4)input required by an aspirant during these peak 4 months
Help appreciated!! 😃 An article will be of much help to Puys readers (in your spare time)
The number of numbers lying btwn 1 and 200 which are divisible by either of 2 ,3 or 5 is:
a)145b)146c)158
x-y=8 and P= 7x^2 - 12y^2, where x,y > o. What is the maximum possible value of P.
A. Infinite B. 352.8 C. 957.6 D. 604.8
I would like to know the approach. TIA. 😃
Maths:Geometry: A right angle triangle with hypotenuse 10 inches and other two sides of variable length is rotated about its longest side thus giving rise to a solid. What is the maximum possible area of such a solid?
This is the first question in the 'Worked out Problems' in Quantitative Aptitude by Arun Sharma in the Geometry section.
I am not able to understand the solution.
It seems that the volume has been calculated in the end and not the area as asked in the question. ...Or am I missing something?
Please help.
An artillery gun is fired twice at an interval of 24 seconds. A motorist moving towards the gun heard the sounds of the gunfire at an interval of 22 seconds. If the speed of sound is 330 m/s, what is the speed of the car?
- 25 m/s
- 30 m/s
- 20 m/s
- 15 m/s
0 voters
how many sol exists for x^2-y^2 =400?
1. Negative integer solutions.
2. Non negative integer solutions
3. Integer solutions.
how to increase accuracy inMock CAT, i've been doing very badly with around 50-55 % accuracy.....
pls help...................
Number of co-primes of 24 which are less than 24?
how many factors of 24 are co-prime to 24?
The area bounded by the three curves |x + y| = 1, |x| = 1, and |y| = 1, is equal to
- 2
- 3
- 4
- 1
0 voters
ABCD is a rectangle such that the length of AD = 2 units. AD is extended to a point E and BE cuts the line DC at a point P. AC cuts the line BE at a point Q and ∠EAC = ∠DPE. If the length of PD is 16/3 units, then find the ratio of the total area of the ΔDPE and ΔPQC to the area of the ΔAQB
- d 641 : 81
- c 73 : 9
- b 8 : 1
- a 289 : 36
0 voters
If the equation x^3 - ax^2 + bx - a = 0 has three real roots, then it must be the case that
(pls explain d method also)
- b = 1
- b ≠ 1
- a= 1
- a ≠ 1
0 voters
Concept required:
If there is a compound interest of 10% for 3 years, then what is the equivalent SI rate for the same 3 years period??
ABCDEFGH is a regular octagon. A and E are opposite vertices of the octagon. A frog starts jumpingfrom vertex to vertex, beginning from A. From any vertex of the octagon except E, it may jump to either of the two adjacent vertices. When it reaches E, the frog stops and stays there. Let a(n) be the number of distinct paths of exactly n jumps ending in E. Then what is the value of a(2n – 1)?
pls explain d method also
- cannot be determined
- 0
- 4
- 2n-1
0 voters
X,Y ,Z are given a 6 digit no each . for each no 2nd digit from left is deleted . it is known that each digit is divisible by d . x & y found exactly 3 distinct values for deleted digit while y found exactly 4 distinct values.
what can possibly be the value of d?
16
30
20
27
How many numbers(n) are there between 1 & 200 such that n/2 , n/3 & (2n+1)/5 are all composite natural numbers ??
- 3
- 1
- 0
- 2
0 voters
5 Nephrologists decide to hold daily meetings such that
(i) At least one Nephrologist attend each day.
(ii) A different set of Nephrologists must attend on different days.
(iii) On day N for each 1 ≤ d
How many maximum days can meetings be held?
(a)14 (b)16 (c)20 (d)None of these
A survey was conducted on TV channels over a group of 10000 out of which 100 did not like any of channels ..
93% like A
89% like B
81% like C
75% like D
78% like E ..
Minimum number of people who like all these five channels . TIA
Ans -2000 ...approach ?
A triangle with coordinates (3,3) , (3,53) and (53,3). Find the number of integer points including boundary points lying inside of triangle.
Ans -1326