How many pairs of numbers exist such that their LCM is 1260 and their HCF is a prime number?
For finding the sum of coefficients of all powers of x in the expression, (x-1)^10 + (x-2)^10, we just put x=1 in the expression. Why do we do that?
if x + y = 11 and then total of all possible values that 11!/(x!y!) can assume ? x and y are non - negative integers?
A is a 4-digit positive integer and B is the 4-digit positive integer formed by reversing the digits of A. If A -B is greater than zero and is divisible by 45, then find the number of possible values of A.
Find the remainder when 1234512345..................12345[25 digits] is divided by 7.
What is the remainder of 13571357.... 250 times is divided by 101?
Why CL is f**ing too costly...too much money for everything
Alok went to a casino to play a card game. He played 10 rounds of that
game. In each round, he doubled his amount and then gave Rs x to his
friend. After 10 rounds, he had rs. 1023. Find the sum of the digits of
the least possible value of x. Only integral values of money were allowed.
Which factor will occupy the 122nd position if all the factors of 6^2 * 55^2* 7^2 are written in ascending order?
S1 = {2, 4, 6, 8, .................... 800}
S2 = {3, 6, 9, 12, .................. 900}
If S3 = S1 U S2, then what will be the 105th element of S3 if all its elements are arranged in increasing order?
here U means union
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in how many ways 2700 can be written as a product of 8 distinct digits?
plz explain with approach
How many positive integer values can x take that satisfy the inequality (x - 8) (x - 10) (x - 12).......(x - 100)
- 40
- 35
- 30
- 25
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At how many points does the graph of y = log5 x intersect y = x-2?
In how many ways can 12 prizes be distributed among 3 kids ?
the answer is 3^12.
The problem is, I can't fathom the idea that, 1st prize can be distributed among 3 Kids in three ways. Never understood that.
I proceeded with the logic that : 12 prizes and 3 kids.
First kid can be given one out of 12 different prizes.
Second Kid can be given one out of 11 remaining prizes.
Third Kid can be given one out of 10 remaining prizes.
Please help me understand my folly. After all I am a useless brain.
Please some one ......... I couldn't sleep over this ............... 😞
X says to Y:I am twice as old as you were when I was as old as you are".The sum of the present ages is 63 years.Find the present age of X.
Ans:36
Cant comprehend the solution that is given for the question.Actually cant understand how to proceed.
If someone could help me out,plz.
A fruit dealer fixes selling price of watermelon juice in such a way that he ends up earning a profit of 30% after paying tax, which is 13% of the cost price. A shopkeeper buys watermelon juice from the dealer and marks up the price by 15% and then adds 25% water to the juice. He then gives a discount of 4% on juice to his customers and thereby sells juice at Rs. 98.67 per litre. What is the cost price per litre of the watermelon juice for the fruit dealer?
In how many ways can 20 identical coins be placed in 3 different boxes such that no box contains less than 3 or more than 8 coins? basically I want to ask how do you find number of integral solutions when x is defined over a range.
In how many ways can 6 distinct letters be put in:
1)2 identical boxes
2)2 non-identical boxes
Puys dunt have the OA...plz do explain
The equation 4x-Ay = B has a number of integral solutions.
If HCF (A,4) = 1, and the number of solutions (x,y) such that x and y lie between 0 to 500 is 45
then the number of possible values for A are
a) 3 b) 2 c) 1 d) none of these
Dont have correct ans with me.