The coefficient of x^7 in the expansion of (1- x^2 + x^3) (1+x)^10 is ? Could anyone please explain the whole approach ? Thanks!
Arun has 2N + 1 friends. He planned to invite a certain number of his friends to a party. The number of ways in which he can invite at least N + 1 of his friends to the party is 256. Find the number of ways in which he can invite at most N of his friends to the party.
Can someone please share the approach for this.
If bhavya and Karmveer work on alternate days to complete a work, then the work gets completed in exactly 24 days. If B and K denote the number of days required by bhavya and Karmveer respectively tocomplete the work independently, then how many ordered pairs of integral values of B and K arepossible?
kindly share the solution.
how to proceed after (1/B+1/K)=1/12??
Can someone tell me which Simcats (take home) are the most relevant as I just want to give only 6-7 of them due to lack of time Please reply 😊
In how many ways can 18.75 be paid in exactly 85 coins consisting of 50paisa, 25 paisa and 10 paisa coin
Ramu has some choclate boxes with him to sell.he sells them as either full boxes or half boxes.the first customer buys half a box more than the no. of boxes with ramu.the second customer buys half a box more than half the remaining no of boxes with him.Ramu continues to sell in this manner to 8 other customers.He is left with no boxes to sell after that .How many choclate boxes did Ramu had in the begining.
Can anybody solve this?
Which is greater 2^100 or 100! ?
Do anyone know shortcuts for solving knockout tournament questions like 128 seeded players are participated and seeded 1 player plays with 128th one and so on, just like you all have solved???
I attempted this 1819 Advanced LRDI 19, in which the same caselet was there but I couldn't understand its solution. Below is the link of snapshot, help me out plz. @mayur_arora @akash12191 @karancool93 or anyone
https://s1.postimg.org/115nnysb8v/screenshot_56.jpg
how to get the exact number for the higlighted text ?
Please provide approach for this question.
Please help
Does anybody know which are the good colleges/colleges with a good rank, among the colleges accepting CMAT scores?
Q. 29
Someone help me with question 54 please! !
A steady wind flows btw from P to Q @ 20 km/hr. The distance btw P and Q is 3600 kms. Find the speed of the plane. Doesn't the data seem inconsistent, I mean how can it arrive at P at 10am and then fly at 7 am and still the time elapsed at Q is only of 6.5 hrs as they've mentioned it's the same day. Please help.
In a class of 30 students, there are 2 categories of students: Liars: who always lie. Truth Tellers: who always speak the truth. These students make three different statements as follows: Statement I : 7 of them say “ There are exactly 7 Liars in this class” Statement II : 8 of them say “ There are exactly 8 Liars in this class” Statement III : The rest of them say “ There are exactly 15 Liars in this class”. How many Liars are there in the class?
Approach plz.
Question 10 with solution please