three variables x,y,z have a sum of 30? all three are non-negative integers if any two variables dont have the same value and exactly one variable is less than or equal to 3.Number of possible solutions for the variables will be?
What is the sum of the radius of the three types of circles given in the figure below, if the side of the square ABCD is 4 cm?
http://i.imgur.com/tnRIVDy.png
OA -
4 (root2) +2 / ( root2 +1)
Q.23
(423)6 + (abc)6 = (1000)6, where abc is a three-digit number in base 6, what is the value of abc?(abc raise to the power 6 and 423 raise to the power 6)
solution - It is given (423)6 + (133)6 = (1000)6
(It seems It is given in terms of power. How can they simply be done with base addition???)
Q.16
If the coefficient of xn in the expansion of (1 + x)10 is even, how many values can n take?
- 5
- 7
- 9
- 11
0 voters
rahul starts trip when the hands of the clock are together between 8 and 9am. he arrives destination between 2-3 pm, when hands are exactly 180 degree apart. how long will it take to complete the trip?
a table in the shape of isosceles triangle having 3 seats along each of the three side of the triangle, in how many ways can 9 people sit across the table? @scrabbler simcat 10 question, answer given is 9! and reason stated because all seats are different, then why have they mentioned "isosceles" , i mean won't there be any difference between scalene and this triangle.
how many obtuse angled triangle can be formed such that sum of the length of sides of triangle is 12 cm and the length of each side is an integer (in cm) ?
off topic: Want help.
Hi guys, there is an institute called 2iim, conducting a boot camp (in chennai) where they say they will solve tough questions from difficult topics in math and verbal. they also claim to be organised by Rajesh balasubramanian, hundred percentiler in previous year CAT. but fees is 1500, for two days. Is it worth going? I'm on the fence about how useful this might be. Any inputs will be appreciated. more details here: chennai.2iim.com.
thanks in advance
In a plane, there are two family of lines y = x + N and y = -x + N, where N {0, 1, 2, 3, 4}. The number of squares that can be formed by these lines is ?
Options are--
17/20
37/20
2
-1
all natural numbers from 1-125 (in decimal system) are written in base 7? how many of these will contain 1?
If k! +(k + 1)! + (k + 2)!, where k is a positive integer less than 17, is an integral multiple of 49, the
number of values that 'k' can have is??
http://imgur.com/HODEeT5
The mean salary in ICM Ltd. was Rs. 1500, and the standard deviation was Rs. 400. A year later each employee got a Rs. 100 raise. After another year each employee's salary (including the above mentioned raise) was increased by 20%. The standard deviation of the current salary is:
A. 460 B. 480 C. 580 D. None of the above
1. A medical clinic tests blood for certain disease from which approximately one person in a hundred suffers. People come to the clinic in group of 50. The operator of the clinic wonders whether he can increase the efficiency of the testing procedure by conducting pooled tests. In the pooled test, the operator would pool the 50 blood samples and test them altogether. If the pooled test was negative, he could pronounce the whole group healthy. If not, he could then test each person's blood individually. The expected number of tests the operator will have to perform if he pools the blood samples are:
A. 47 B. 25 C. 21 D. None of the above
2. The game of "chuck-a-luck" is played at carnivals in some parts of Europe. Its rules are as follows: if you pick a number from 1 to 6 and the operator rolls three dice. If the number you picked comes up on all three dice, the operator pays you .3; if it comes up on two dice, you are paid .2; and if it comes up on just one die, you are paid .1. Only if the number you picked does not come up at all, you pay the operator .1. The probability that you will win money playing in this game is:
A. 0.52 B. 0.753 C. 0.42 D. None of the above
In a race of 500m , L beats M by 40 second &N beats by 125m .if M &N run a 500m race M beats N by 40 second .find the time taken by M to run the race ....WITH APPROACH @Going_High @sagarcat