*Work Based Math Short Cut Tricks for IBPS SBI RRB PO Clerk Exam 2016 – Work & Time Math Tricks to Solve Problem in Quick Time/ Shortest Possible Time***Work & Time Math Short Cut Tricks for IBPS SBI RRB PO Clerk Exam 2016**

**Math Short Cut Tricks - Work and Time for IBPS SBI RRB PO Clerk Exam 2016**

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**Example 1:**A can do a piece of work in 10 days, B can do the same piece of work in 20 days, C can do the same piece of work in 30 days and B can do the same piece of work in 40 days, then how many days they can take together to complete this work.

**Person Time (days) Work (LCM) Efficiency (Work/Time)**

**Total (A + B + C + D) 25**

**Math Short Cut Tricks for Work and Time: Extension 1 of Example 1 –**Let us think or say, how many days A and B can finish the same piece of work.

**Person Time (days) Work (LCM) Efficiency**

**A 10 12**

**B 20 120 6**

**Total (A + B) 18**

**Note: In total, add or subtract quantities given in efficiencies column to find out required time of persons.**

**Math Short Cut Tricks for Work and Time: Extension 2 of Example 1 –**Let us think or say, how many days A, B and C can finish the same piece of work.

**Person Time (days) Work (LCM) Efficiency**

**A 10 12**

**B 20 120 6**

**C 30 4**

**Total (A + B + C) 22**

**Example 2:**A and B can do a piece of work in 10 days, B, alone can do the same piece of work in 35 days, then tell us how many days A can take to complete same piece of work.

**Person Time (days) Work (LCM) Efficiency**

**Total (A+B-B) 5**

**Conclusion**

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