_______ is the not the sedimentary

Consider two Statement and a Question :

Statement - 1:   Priya is 4 ranks below Seema and is 31st from the bottom.

A man completes 7/8 of a job in 21 days. How many more days will it take him to finish the job if quantum of work is further increased by 50%?

Consider the following multiplication problem:

(PQ) × 3 = RQQ, where P, Q and R are different digits and R # 0.

What is the value of X in the sequence 20, 10, 10, 15, 30, 75, X?

Consider the following statements :

1.    The sum of 5 consecutive integers can be 100.