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
Now-a-days, Efficiency and
effectiveness of math short cut tricks are on top demand by the prospective
aspirants which not only saves time in the recruitment exam but also work to
score maximum in all section of the exam.
Most of the candidates get failed due to application of time consuming
tricks / techniques in the exam. As per our principle, the only success key in
these exams is self-study which does not mean hard work but one and only smart
work (technological based short cut tricks that can be memorize easily by the
candidates).
Math Short Cut Tricks - Work and Time for IBPS SBI RRB PO Clerk Exam 2016
Now today, we are discussing most
wanted math short cut trick on the hot topic as Work and Time which is
explained with some examples. As we know that work and time are related with
each other with following formula.
Thus, time can be obtained in
ratio of work and efficiency. To understand the concept, let us take an
example.
NO TIME WASTE – READ ONCE – MEMORIZE FOREVER
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.
Solution 1: Prepare the table as
given below.
Person Time
(days) Work (LCM) Efficiency (Work/Time)
A 10 12
B 20 120 6
C 30 4
D 40 3
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.
Solution (extension 1):
Person Time
(days) Work (LCM) Efficiency
A 10 12
B 20 120 6
C 30 4
D 40 3
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.
Solution (extension 2):
Person Time
(days) Work (LCM) Efficiency
A 10 12
B 20 120 6
C 30 4
D 40 3
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.
Solution 1: Prepare the table as
given below.
Person Time
(days) Work (LCM) Efficiency
A+B 10 7
B 35 70 2
Total (A+B-B) 5
Conclusion
Endeavor has been made to clear
the concept of work and time by giving some feasible / conceptual examples. In
case of any query or suggestion, please make comment on the box provided.