What is two fifth of one tenth of three eight of nine eleventh?
The Usual Method
Estimated Time to arrive at the answer = 45 seconds.
(Note: The time it takes to do the arithmetical operations can differ based on the individual’s ability to multiply the numbers accurately.)
= a number whose denominator is a multiple of 110 (10 x 11) and the numerator is a multiple of 27 (9 x 3). With these two conditions you can eliminate all options except ‘4’.
Estimated Time to arrive at the answer = 10 seconds.