The set of homogeneous simultaneous equations
4x + 2y = 0 and
6x + 3y = 0 has :

D. AN INFINITE NUMBER OF SOLUTIONS.
Posted in:  Linear Equations -  Algebra -  Mathematics

The average speed of a train in the onward journey is 25% more than that in the return journey. The train halts for one hour on reaching the destination. The total time taken for the complete to and from journey is 17 hours, covering a distance of 800 km. The speed of the train in the onward journey is: 

C. 56.25 KM/HR

Choose the best alternative as the answer. - What is always in worry ?

A. DIFFICULTY

Series : 5  1  4  7  3  9  8  5  7  2  6  3  1  5  8  6  3  8  5  2  2  4  3  4  9  6
How many odd numbers are there in the sequence which are immediately preceded and also immediately followed by an even number ?

D. 4

In following question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces. - 66, 36, 18,

C. 8