Twelfth SSC CGL level Question Set, topic Arithmetic mixed topics
This is the twelfth question set of 10 practice problem exercise for SSC CGL exam on Arithmetic mixed topics. Students must complete this question set in prescribed time first and then only refer to the corresponding solution set.
Recommendation: Before answering the relevant 10 problem question set you may like to go through the Time and work and Rich Ratio concepts under the subsection of Efficient Math Problem Solving, especially the articles on Time and Work problems part 1 and part 2 for Mandays technique and Definition tuning approach and Simplifying Mixture problems in a few steps part 1 and part 2 for detailed application of the powerful Portions use technique. This is a very effective Rich ratio concept for simplifying difficult ratio problems.
Twelfth Question set- 10 problems for SSC CGL exam: Arithmetic mixed topics - time 12 mins
Q1. If 9 men working for 9 hours a day for each of the 9 days produce 108 units of work then, 6 men working 6 hours a day for each of the 6 days will produce units of work,
Q2. A swimmer swims from his starting point against current for 10 minutes and then swims backwards for next 10 minutes to reach a point distant 1000 meters from the starting point. The speed of the current then is,
- 2 km/hr
- 3 km/hr
- 4 km/hr
- 6 km/hr
Q3. A tank has three pipes, the pipes A and B together can empty the tank in half the time that C, the third pipe, takes to empty it alone. Pipe A working alone takes half the time taken by pipe B to empty the tank alone. Together the three pipes take 6 hours 40 minutes to empty the tank. The time that the pipe A takes to empty the tank alone in hrs is,
Q4. If A and B can finish a job together in 20 days, B and C together in 10 days and C and A in 12 days, then A, B and C together will finish the work in days,
Q5. A seller gives 4% discount on his marked price. What should be his marked price when the cost price is Rs. 200 and he wants to make a profit of 20%?
- Rs. 192
- Rs. 240
- Rs. 250
- Rs. 260
Q6. If a mobile telephone bill is paid before due date, the company gives a rebate of 4%. A person saves Rs. 13 by paying his bill before due date. What was his billed amount (in Rs.)?
Q7. The compound interest on a certain amount of money at a certain rate per year for two years is Rs. 2050 and the simple interest on same amount at same rate for three years is Rs. 3000. The amount of money is,
- Rs. 20,000
- Rs. 21,000
- Rs. 25,000
- Rs. 18,000
Q8. A tank is normally filled in 8 hours but takes another 2 hours more because of a leak in the tank. How long would it take for the full tank to get empty because of the leak?
- 25 hours
- 16 hours
- 40 hours
- 20 hours
Q9. If the rate of interest is 4% per annum in the first year and 3% per annum for the second year, the compound interest on Rs. 2000 in 2 years will be,
- Rs. 140.40
- Rs. 142.40
- Rs. 143.40
- Rs. 141.40
Q10. The marked price of trousers and shirts are in the ratio of 2 : 1. The seller gives 40% discount on the shirt. If the total discount on the set of trousers and shirt is 30%, the discount offered on the trousers is,
For answers and detailed solutions refer to the SSC CGL level Solution Set 12, Arithmetic mixed.