Aptitude and Reasoning Questions

If X2+4y2+z2-4x-2z+5-0, then find the value of y15+x5z14

The mean of a distribution is 20 and the standard deviation is 4. What is the value of the coefficient variation?

Present ages of Sai and Satheesh are in the ratio of 5:4 respectively. Three years hence, the ratio of their ages will become 11:9 respectively. What is Satheesh's present age in years?

Working together, pipes A and B can fill an empty tank in 10 hours. They worked together for 4 hours and then B stopped and A continued filling the tank till it was full. It took a total of 13 hours to fill the tank. How long would it take A to fill the empty tank alone?

If the length of one side and the diagonal of a rectangle are 5 cm and 13 cm respectively, then find its perimeter (in cm).

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

TU, AB, HI, ?

In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statements:
(I) Sohan is a good sportsman.
(II) Sportsmen are healthy.

Conclusion:
(I) All healthy people are sportsmen. men.
(II) Sohan is healthy.

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

GHI, ? , TUV, BCD