IN a b school there are three electives and at least one elective is cumpulsory to opt . 75 % students opted for A. 62% for B 88% for C . a student can have dual or triple specialisations . what is the min number of students that are specialized in all three streams .
Q.4 In triange ABC AE : EC = 1 : 7, AD : DB = 1 : 3, BF : FC = 2 : 3 and the area of Ξ ABC = 160 square units find the area of ΞADE in square units.
1) 5
2) 15
3) 35
4) 10
5) 25
Find the number of integral solutions for 6(x^2) -3xy -13x +5y +17 = 0
A box contains 2 tennis, 3 cricket and 4 squash balls. Three balls are drawn in succession with and without replacement. Find the probability that :
1) all three are of same type (with replacement) Options: 1) 11/81 2) 1/9 3) 13/81 d) 15/81 e) 17/81
2) all three are of same type (without replacement). Options: 1) 3/84 2) 1/84 3) 5/84 4) 7/84 e) 11/84
Please explain.
how many sets of 2 or more consecutive integers are there that add upto 1000?
find the no of no b/w 200 and 300 both included which are not divisible by 2,3,4,and 5.
how many 3 digit no have less than 5 prime factor?
and please don't forget to explain your answers...
Quant Funda : The formulas for sum
1. The sum of first n natural numbers = n(n+1)/2
2. The sum of squares of first n natural numbers is n(n+1)(2n+1)/6
3. The sum of cubes of first n natural numbers is (n(n+1)/2)2/4
4. The sum of first n even numbers= n (n+1)
5. The sum of first n odd numbers= square(n)
1. An honest milkman mixes bisleri to milk. The resultant mixture has bisleri = 20% of milk and the bisleri costs him 20% of the cost of milk. Find his profit if he sells at the cost of milk. Don't have the correct answer. To me it seems no profit no loss. whats ur take puys?
2. two shopkeepers profess to sell their goods at 30% profit. By mistake one of them calculates profit on the S.P . Find the difference in their actual profit if the revenues of both is rs 3900. need the quickest approach in this one.
In how many ways can one choose 4 letters from the word INDEPENDENCE?
What is the sum of all possible positive integer values of n, such that n^2+19n+130 is a perfect square?
PS: do not have OAThe sum of four numbers is 253. The ratio of the first to the second is 2 : 3. The ratio of the second to the third is 5 : 6. The ratio of the third to the fourth is 8 : 9. What is the average of the second and the third number?
Find the value of k, if the equation x^3+ kx^2+x+3=0 and x^3 + 2x^2+kx+2 have a common root?
a) -2
b) 3
c) 2
d) b or c
P.S. I don't have answer. Please explain how you reach the answer, that would be helpful
For the given equation x^9+5x^8-x^3+7x+3=0 how many maximum roots are possible?
1)3
2) 5
3) 6
4) none of these
P.S. I don't have answer. Please explain how you reach the answer, that would be helpful
M is a two digit no which has the property that: the product of factorials of its digits > sum of the factorials of its digit
28383 term of the series 12345678910111213141516.....
The letters of the word "article" are arranged at random. Find the probablility that the vowels may occupy the even places. ( I did this question using a method. Want to check if there is any other method to do it).
a) 2/25 b) 1/35 c) 3/36 d) 2/34
K is a 3 digit no such that the ratio of the no to the sum of its digit is least? what is diff between the hunderds and the tens digit of K?
9
8
7
What is the probability that four S come consecutively in the word MISSISSIPPI?
a) 4/165 b) 2/165 c) 3/165 d) 4/165
If u form a subset of integer chosen from b/w 1 and 3000, such that no2 integer add upto a multiple of 9, what can be the maximum no of elements in the subset.