Ram wrote a book and published it. He later noticed that out of the 480 pages, one page was missing. If the sum of numbers on all the pages is equal to 115080, what is the digital sum of the page that is missing?
Find the number of ways in which the number 6561^2 can be written as a product of 3 factors.
is it 42?
Find the remainder when the number 65! is divided by 131.
A shopkeeper decreases the price of an article by 20% on day 1. On day 2, he increases the price of the article by 20%. He follows this cycle on days 3 and 4, 5 and 6 and so on. Find the day on which the price of the article goes below 60% of the initial price for the first time.
Find the number of integral points (x,y) that satisfy x^2/16+y^2/25≤1
If a + b = 134, Find the possible number of pairs of a and b, given a and b are prime to each other ?
In an exam, there are 25 questions with each question having four answer choices, of which only one is correct. Five students - A, B, C, D and E - took the exam and no two of them marked the same answer for any question and each question was attempted by at least four students. All the questions carry equal marks and there is no negative marking in the exam. If the teacher gave 100 chocolates to the five students, to be shared among them in the ratio of the marks obtained by them, and it is known that each student got at least one chocolate, then in how many possible ways could the chocolates be shared among the students?
The number of ways in which 6 British and 5 French can dine at a round table if no two french are to sit together is given by:
a + b + c = 40
Find the number of positive Integral solutions such that HCF(a,b,c) = 1 ???
Find the number of integer solutions to
|x-1|+|y+1|
Approach pls
area enclosed between |y|=|x|-3 and |x| =5 ?
How does the first one look line...as in what effect does |y| have on the graph?
There are 5HP , 4Dell and 3 Lenovo laptops on sale. A family wants to buy 3 laptops, but the wife says that she wants one Dell only for herself. Thus, in how many ways can the family select the laptops ?
A three digit number N ends with the same number of zeroes (at least one) when written in Base 2, Base 3 and Base 5. How many values can N have?
In a movie theatre tickets are sold randomly with 1-100 numbers (Seat numbers) written on them . When all the tickets are available , three person entered in the hall to buy tickets .What is the probability that only one person out of three got a seat number in the range of 6 -50.?