It took 64 people 77 days to construct a house. What fraction of the work can be completed by 44 people in 96 days?

Read the statements and identify the logically correct conclusion from the given information. 

Statement:
"The pedestrian crossing is few feet away, it is safe to use it." says a mother to her child. 

Conclusions:
I. Pedestrians should use pedestrian crossing for safety.
II. All the children know what is pedestrian crossing.

A 173 m long train crosses a 727 m long bridge in 40.5 seconds. What is the speed of the train?

Which of the following is NOT an equation of motion?

Consider the following question and decide which of the statements is sufficient to answer the question.
Question: 

Find the value of $$z$$,
Statements:
1) $$z^2 = 36 + a $$
2) $$a = x^2$$ & $$x = 8 $$