Let the total work = L.C.M of 15 and 10 = 30 units Then, efficiency of ‘A’ alone = 30 ÷ 15 = 2 units/day Combined efficiency of ‘A’ and ‘B’ = 30 ÷ 10 = 3 units/day So, efficiency of ‘B’ = 3 – 2 = 1 units/day So, work done by ‘B’ alone in 21 days = 1 × 21 = 21 units So, percentage of work completed by ‘B’ = (21 ÷ 30) × 100 = 70%
P@Q’ means ‘P is brother of Q’. ‘P#Q’ means ‘P is sister of Q’. ‘P%Q’ means ‘P is married to Q’. ‘P!Q’ means ‘P is mother of...
Select the option in which the numbers share the same relationship as that shared by the given pair of numbers.
76 : 171
Pointing to a man in a photograph, Anitha said, "His mother’s only’ daughter is my mother.' How is Anitha related to that man?
Ravi's father Mahesh has a brother Mukesh who has a daughter Chavi. Vinayak is Chavi's brother. How is Vinayak related to Mahesh's mother?
Arsh is Shivam's father and Dhruv is the son of Bimla. Eshwar is the father of Arsh. If Shivam is the brother of Dhruv, how is Bimla related to Eshwar?
Amit is the brother of Sonia. Jyoti is the sister of Nikita. Sonia is the daughter of Satish’s father. Nikita is the daughter of Kavinder. Jyoti i...
'A + B' means 'A is the father of B'. 'A = B' means 'A is the son of B'. 'A ÷ B' means 'A is the daughter of B'. 'A X B' means 'A is married to B'. In ...
Select the option in which the numbers shares the same relationship as that shared by the given pair of numbers.
(73, 78, 93)
Select the option in which the words share the same relationship as that shared by the given pair of words.
Lotus : Flower
If (A @ B) means A is son of B, (A & B) means A is mother of B, (A # B) means A is father of B, (A $ B) means A is sister of B. If H @ I & J # K $ L @ M...