Question
An elephant can do a work as fast as two horses
lsquo;Arsquo; and lsquo;Brsquo; can do it by working together. If horse lsquo;Arsquo; alone can complete the work in 15 hours and horse lsquo;Brsquo; in 30 hours, then find the time taken by elephant to complete the work.Solution
Let the total work = 30 units Efficiency of horse who can complete the work in 15 hours = 30/15 = 2 units/hour Efficiency of horse who can complete the work in 30 hours = 30/30 = 1 units/hour Therefore, time taken by both horses to complete the work together = 30/(2 + 1) = 10 hours Therefore, time taken by the elephant to complete the work = 10 hours
Select the word-pair in which the two words are related in the same way as the two words in the following word-pair.
Painter : Painting
By interchanging the given two signs which of the following equation will be not correct?
× and –
Statements:
X < W ≤ F = Q ≥ P = T ≥O ≥ S = R
Conclusions:
I) Q > R
I) Q = R
The first number in the given number pairs is obtained by performing certain mathematical operation(s) on the second number. The same operation(s) are ...
Select the option in which the numbers are not related in the same way as are the number of the following set.
(520, 8, 56)
Select the option that is related to third letter - cluster in the same way as the second - letter cluster is related to the first letter - cluster and ...
Select the option that is related to the third term in the same way as the second term is related to first term and the sixth term is related to the fif...
Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.
_ K L _ N O J ...
Select the related letters/words/numbers from the given alternatives.
E @ G = 37 : L @ D = 50 :: H @ K = 90 : : P @ F = ?
Find the odd set of numbers from the given alternatives?
