aimcat 1621 q1.
geometric mean of first n terms of a progression 4,8,16...n is 1024. Value of n?
can we use the approach of geometric mean of n terms is root n(2^2,2^3,2^4....2^n+1)=2^10 and then compare the powers?
Find the sum of all positive integral value "a" for which (2a+124)/(a+3) is an integer.
Hey guys, a small doubt - In questions where you are asked to find if 3 number a,b and c form the sides of a triangle , is checking a+b > c , b+c > a and c+a > b sufficient or we shall also have to check a-b
Q In how many ways we can pick 4 non adjacent balls from 20 different balls if they are arranged in a straight line ?
Q In how many ways we can pick 4 non adjacent balls from 20 different balls if they are arranged in a circle ?
Please write approach also
True or false
If ratio of sum of first 'm' terms and 'n' terms of an AP is m^2 and n^2.. then ratio of mth and nth term is (2m-1): (2n-1)
Plz give detailed solution!!
Data Sufficiency:(EDITED)
1) Factors of N^2 less than N are 7.
2)Some factors of N^2 that are less than N are not factors of N.
Data Sufficiency :
Is 'abcd' a perfect square?
1) a=1;b=3;d=9
2)b=3;c=6;d=9
How many scalene triangles with integral sides of perimeter 102 are there ?
Please post detailed approach.
According to the array of questions (to be referred as Question Bank), which one is the best? Please pick the best.
- Quantam CAT by Sarvesh Verma
- RS Agarwal
- Nishit K Sinha
- Other(s) [Please comment the name(s)]
- Arun Sharma
0 voters
In 1 km race A gives B a head start of 100m and still beats him by 20 sec. but if A had given a head start of 25 sec to B, then B beats him by 50m
. Find time required by A in 1km race?
What is the Remainder when 2^123 is divided by 61?
What is the remainder when 78237923.......upto 400 digits is divided by 101?
which CAT online mock test series is best ? please help me..
The consumption of petrol per hour of a car varies directly as the square of its speed. When the car is travelling at 50 Kmph, its consumption is 2 ltrs. If each litre cost 30/-(in dreamland :p) and other expenses per hour is 60/-, then what would be the minimum expenditure reqd. to cover a dist of 500km?
Guys , Solution with explanation please.
Is there any short cuts for such type of questions?
find the equation and possible no. of distinct real roots of p(x)=ax^2+bx=c if a, b, c are integers and a=1 and b= -6 i.e sum of roots =6
A group of 'n' friends have dinner, sitting in the same order everyday, in a circular table. Everyday one pair of friend not sitting next to each other give a toast. If the total no. of unique toasts in 54 what is n ?
How did you guys solve this question. Can anyone elaborate the approach?
Fifteen lines are drawn in a plane such that 4 of them are parallel. What is the maximum number of regions into which the plane is divided?
Is there any specific method to solve these kind of questions?
hi all, i am new to cat preparation, and intend to write the exam this year itself. i want to know if for preparing quant, TIME ' s booklets are enough? Please reply soon.
A certain perfume is available at a duty-free shop at the Bangkok international airport. It is priced in the Thai currency Baht but other currencies are also acceptable. In particular, the shop accepts Euro and US Dollar at the following rates of exchange:
US Dollar 1 = 41 Bahts
Euro 1= 46 Bahts
The perfume is priced at 520 Bahts per bottle. After one bottle is purchased, subsequent bottles are available at a discount of 30%. Three friends S, R and M together purchase three bottles of the perfume, agreeing to share the cost equally. R pays 2 Euros. M pays 4 Euros and 27 Thai Bahts and S pays the remaining amount in US Dollars."
Find how much R owes to S in Bahts ?