SNAP Data Sufficiency Questions

Four classes Rural Marketing, Digital Marketing, International Marketing and Service Marketing were taught in four consecutive periods of one hour each starting from 8.00 am on a week day. 

Read the statements and find out the probable option which can be sufficient to answer the question:
At what time was the Digital Marketing class scheduled?
Statement I. International marketing class ended at 10.00 am which was preceded by Service Marketing.
Statement II. Rural Marketing was scheduled as the last class.
Statement III. International Marketing was immediately followed by Digital Marketing.

Read the statements and find out the probable option which can be sufficient to answer the question:
What is the total monthly salary of Kakade?
Statement I. Kakade‘s basic salary is Rs.100/- more than Madan’s salary, who also serves in Kakade’s company.
Statement II. Other allowance taken by Madan besides his basic salary is $$\frac{1}{10^{th}}$$ of Kakade’s salary.
Statement III. Madan’s basic salary is Rs.15000/- per month.

Babu is younger than Gopu. Somu is older than Pappu. Read the statements and find out the probable option which can be sufficient to answer the question:
Who among them is the oldest?
Statement I. Somu is older than Babu.
Statement II. Gopu is older than Somu.
Statement III. Pappu is the youngest of all.

The total of the present ages of A, B, C and D is 96 years. What is B's present age?
I. The average age of A, B and D is 20 years.
II. The average age of C and D is 25 years.

Deepak's marks in Hindi are 15 more than the average marks obtained by him in Hindi, Economics, Sociology and Philosophy. What are his marks in Philosophy?
I. The total marks obtained by him in Hindi and Philosophy together is 12.
II. The difference between the marks obtained by him in Sociology and Economics is 120.

What was the cost price of the suitcase purchased by Richard?
I. Richard got 20% concession on the labeled price.
II. Richard sold the suitcase for Rs 2000 with 25% profit on the labeled price.

B alone can complete a work in 12 days. How many days will A, B and C together takes to complete the work?
I. A and B together can complete the work in 3 days.
II. B and C together can complete the work in 6 days.