Let the total amount of work = 450 units {LCM of 18 and 25} Then, efficiency of ‘A’ = 450/18 = 25 units/day Efficiency of ‘B’ = 450/25 = 18 units/day Combined efficiency of ‘A’ and ‘B’ = 25 + 18 = 43 units/day Work completed by ‘A’ and ‘B’ together in 5 days = 5 × 43 = 215 units Remaining work = 450 – 215 = 235 units Time taken by ‘A’ alone to complete the remaining work = 235/25 = 9.4 days
Introducing a woman, a man said, 'Her sister’s mother is the only daughter of my grandmother.' How is the man related to this woman? Â
W is the son of S. V is the son of T. W is married to U. U is T’s daughter. How is V related to W?
How is L related to S?
How is W related to S?
How is R related to K?
Who among the following person is the mother of D?
D is the brother of C. E is the sister of F, who is the son of B. G is the daughter-in-law of C. F is married to G. C is not a male. How is D related to B?
How is K related to J?
If X – Y means that X is the mother of Y,
X × Y means that X is the father of Y,
X ÷ Y means that X is the sister of Y,
then wh...
There are five members in the family. Q is father-in-law of B, who is sister-in-law of D. W is mother of D. O is the only brother of D. Q is married. Wh...