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Let the total work = 12 units Efficiency of horse who can complete the work in 6 hours = 12/6 = 2 units/hour Efficiency of horse who can complete the work in 12 hours = 12/12 = 1 units/hour Therefore, time taken by both horses to complete the work together = 12/(2 + 1) = 4 hours Therefore, time taken by the elephant to complete the work = 4 hours
Which of the following statement is true?
If O is the sister-in-law of T, then which of the following expression is true?
O is married to N. Z is the daughter of O, who is the mother-in-law of P. W is the son of P. N has only one child. How is N related to P?
____ is the mother of E.
How P is related to Q?
How is E related to H?
How is P related to T?
In equation ‘P – Q % R & S + T’, how is P related to T?
How is L related to S?