Search found 258 matches
The ans is A When 4 is divided by 3 remainder is 1 when 7n is divided by 3 remainder = 2 (this u can find by plugging values of n where n + 1 is divisible by 3. Also since it is given that n is a positive integer and n+1 is divisible by 3 u can rule out the possibility of n being 0) So remainder whe...
This one has been discussed in the forum many times before. But in case u have ur exam soon here is the short ans With statement 1 & 2 combined u have the following info angle rqs = angle rsq = z so angle qrs = 180 - 2z the same with the other triangle angle tsu = angle tus = y so angle rtu = 180 - ...
I did this by plugging the values
if u solve the equation in the question stem u get
10 ( x+2y) / (x+y) = k
Now just plug the value of each ans choice instead of K
you will see that the only solution where x<y and both are positive is with 18 as the ans.
Is there a better way to do this?
I would go with 1 & 3 (last choice) If n = 1, K = 1, so no of factors is 1, which is odd if n = 2, K = 4, so no of factors = 3, which is both odd and a prime number. However if K is a square of n, it cannot have even numbers. Here is my thinking. say k = x^2y^2 no of factors = (2+1) (2+1) both are o...
The ans should be C
The lowest values for which a = 2b and a + b > 0 are
b = 0.4 and a = 0.8.
if u put these values or any values greter than then in all cases u will find ab/a+b is less than ab
ans should be C
both X&Y have the same sign, and X&Z have the same sign. If X is negative even Y and Z are negative. If all 3 are negative then XYZ<0>0
so all three have to be positive
total ways in which u can select 1 from 1000 = 1000 total ways in which u can select 1 from 800 = 800 total ways u can select 1 junior and 1 senior = 1000 * 800 total ways u can select 1 sibiling from one class = 60 total ways u can select the same siblings pair from the other class = 1 so ans = 60*...
ans should be A
Mean = Sum / No of terms.
Since the sum is the same for both the sets and the avg of one is less than the other. The one with the lower avg will have greater terms.
Thanks so much for ur immediate reply. Another question if u dont mind.
I got how u narrowed it down to n = any prime number greater than 3
but how did u figure out that the sq of a prime number - 1 is a multiple of 24 and so r = 0?
is there a rule or some thing,