Let the total work = 66 units Efficiency of horse who can complete the work in 22 hours = 66/22 = 3 units/hour Efficiency of horse who can complete the work in 33 hours = 66/33 = 2 units/hour Therefore, time taken by both horses to complete the work together = 66/(3 + 2) = 13.2 hours Therefore, time taken by the elephant to complete the work = 13.2hours
How many 6s are there in the following number series which are preceded by 4 and followed by 8.
2 4 6 8 4 2 8 6 4 8 7 3 8 6 4 2 4 6 8 7 4 6 9 4
A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
13, 38, 150, _____, 4478, 31341.
Select the number that can replace the question mark (?) in the following series. 17, 21, 30, 46, 71, ?
Select the set in which the numbers are related in the same way as are the numbers of the following sets.
( NOTE: Operations should be perf...
12 5 20
m 13 8
If ‘m’ is the resultant of the first row, what the resultant of the second row?
...Select the number-pair that is different from the other three.
Read the directions carefully and answer the following question.
If in the number ‘ 9887532691 ’, the even digits are shifted to the next ...
If all the digits in each of the numbers are arranged in ascending order within the number, which of the following will form the highest in the new arra...
Select the option that is related to the third term in the same way as the second term is related to the first term.
17 : 361 : : 21 :______
If 3792 = 39 and 7242 = 22, then 2958 = ?
