In how many ways 3 girls and 3 boys can stand in a line such that each boy has atleast one girl standing next to him?
Ex BGBBGG is a valid case.
There are 6 tasks and 6 people. Task 1 cannot be assigned to person 1 or to person 2. Task 2 can be assigned either to person 3 or person 4. Each person gets one task each. In how many ways this assignment can be done?
A train usually takes 4 hrs to run between stations A and B. One day, the train started from station A, but after 1 hr, its speed went down to half of its usual speed, due to a heavy rain. Having traveled 100 kms in the heavy rain, the driver of the train was not able to see the railway track properly, due to water logging, and thereupon, he further decided further reduce the speed by 50%. After that, the train reached station B in another 4 hrs. What was the time taken by the train to reach station B from station A on that day?
Hasnt the official verbal and LR thread for 2015 started yet?
Given : x^2 + y^2 + xy = 4 , x and y belongs to real numbers ,
find the maximum value of x+y
A restaurant has priced camera at 95 rs. Now it reduces its price by 20% so that it earns 60% more.
what should be the minimum no of student in a class room in which 25% student score 75 marks,10% student score 85 marks,15 % student score less than 50 marks, 25% score 60 marks and remaining student score more than 90 marks..
option:
A-100
B-80
C-70
D-None of these
If x^2 + (2m+4)x + 9 is positive for all values of x, the range of m is ______
a) (-infinity,-5)>U>(1,infinity)
b) (-infinity,-1)>U>(5,infinity)
c) (-5,1)
d) (-5,-1)
Suppose there is a round duct which contains round pipes. The diameter of the pipe is 2 cm. The duct contains 3 similar pipes which fit exactly into it. Find the diameter of the duct?
a.) 4 b.) 5 c.) 6 d.)7
The no. of '0's at the end of the product: (2^3 * 3^4 * 4^5 * 5^6)+(3^5 * 5^7 * 7^9 * 8^10)+(4^5 * 5^6 * 6^7 * 7^8)-(10^2 * 15^3 * 20^4) is: A)5 B)6 C)28 D)N.O.T........OA is B) but i think it shd be D). Help needed