1.：A clerk multiplied a number by ten when it should have been divided ans he got was should the ans have been?
a:1
2.：If Rs20/- is available to pay for typing a research report & typist A produces 42 pages and typist B produces 28 much should typist A receive?
a:Rs12/-
3.：The average salary of 3 workers is 95 Rs. per week. If one earns Rs.115 and second earns Rs.65 how much is the salary of the 3rd worker.
Ans.105.
4.：A 16 stored building has 12000 on each floor. Company A rents 7 floors and company B rents 4 floors. What is the number of of unrented floor space.
Ans.60000