In the data set, {a,0,1,6,9,10,11}, consisting of seven
distinct integers, one of the numbers is the mean as well as median.
How many values of 'a' are possible
A no. 'a' is the least no.which is exactly divisible by each of
2,4,5,10 and 20, while the no. 'b' is the greatest no. that
exactly divides each of 12,60,75 and 90.
If a number N has a*b factors, including 1 and itself, then the maximum
no. of distinct prime factors that the no. N can have is ??
thread for CL mocks 2016??
In a laboratory , three containers A, B, C have equal volumes of different mixtures of liquid oxygen and liquid nitrogen. The concentration(by vol) of liquid Oxygen in different mixtures is 20% , 40% and 80% resp. First 1/5th of the contents of A are poured into B, then 2/5th of the contents of B are poured into C. The final concentration of liquid Oxygen in C is approximately:
a) 62.4 %
b) 61.7 %
c) 68.6 %
d) 65.9 %
A thief steals four gallons of liquid soap kept in a train compartment's bathroom from a container that is full of liquid soap. He then fills it with water to avoid detection. Unable to resist the temptation he steals 4 gallons of the mixture again, and fills it with water. When the liquid soap is checked at a station it is found that the ratio of liquid soap now left in the container to that of the wated in it is 36: 13. What was the initial amount of the liquid soap in the container if iti is konwn that the liquid soap is neither used nor augmented by anybody else during the entire period?
Please explain using Alligation
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How many four digit perfect squares 'abcd' are possible such that 'dbca' is also a 4-digit perfect square and is also a factor of 'abcd'?(given a!=d)
- 2
- more than 2
- 1
- 0
0 voters
?
remainder? 2^133/19
There are n students in a class. Their class teacher gave them a task of finding the average of the first n natural numbers and each of them left out a different number and found the average of the remaining numbers. The average of the averages obtained by all the students was 21. Find n.
a) 39
b) 40
c) 41
d) 38
Can someone give the solution along with a detailed explanation of it?
Q25
It is taking hell lot of time to complete number system and progression from Arun Sharma.. n I haven't even done LOD III... Are these two chapters supposed to take ds much or I'm wasting time.. I know dz are important chapters..plz suggest how to go about it.
Let R1 & R2 respectively denote the maximum and the minimum possible remainders when (276)^n is divided by 91, for any natural no.n, n greater than/equal to 144. Find R1+R2 ?
2 runners are running on circular track of length 1000m. Speed of runners is 20m/s and 50m/s. Both start from same point in same direction. After how much time will they meet at a point diametrically opposite to their starting point for the first time after starting?? Explanations pls
The sum of all the terms from the 7th to the 20th terms of an Arithmetic Progression, A is 189.
The first term of another arithmetic progression, B is 10 times the 7th terms of A and the common difference of the two progressions are the same.
Find the Sum of the first 131 terms of B ?
How many different sums can be formed with the following coins: 5 rupee, 1 rupee, 50 paisa, 25 paisa, 10 paisa, 3 paisa, 2 paisa and 1 paisa? (Please give detailed answer)
A and B can together do an assignment in 5 days . B's speed is 80% of A's speed and total key depressions in the assignment are 5,67,000 . What is A's speed in key depressions per hour if they work for 8 hours a day ?
If 1!x2!x3!x......49!=(180)^k*m, where k and m are natural no.s and m is not a multiple of 5, Find the value of k.
Out of n consecutive natural numbers, four numbers are selected such that
the differences of all the possible pairs are distinct.What is the least value of n for which this is possible ?
##welcome cat 16
Find the remainder when (712!+1 ) is divided by 719 ?