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Let the total task = 120 units (LCM of 20, 24 and 30) Amount of task done by P alone in one day = 120/20 = 6 units Amount of task done by Q alone in one day = 120/24 = 5 units Amount of task done by R alone in one day = 120/30 = 4 units Amount of task done by all of them together in 4 days = 4 × (6 + 5 + 4) = 60 units Amount of task done by Q alone in 3 days = 3 × 5 = 15 units Amount of task done by Q and R together in middle = 120 – 60 – 15 = 45 units Time taken by Q and R together to complete 45 units task = 45/ (5 + 4) = 45/9 = 5 units So total time taken to complete the task = 5 + 4 + 3 = 12 days
If A @ B means A is the spouse of B. A # B means A is the sister of B. A $ B means A is the brother of B. A % B means A is the son of B. If 'B % C @ D $...
In the following question, select the wrong number from the given alternatives.
44, 54, 69, 94, 129, 189
There are six persons, Z, N, A, D, H and V in a family. V is the paternal grandmother of Z. A is the sister of H. N is the father of A. Z is the only so...
'A $ B' means 'A is the parent of B'. A # B' means 'A is the brother of B'. 'A @ B' means 'A is the grandfather of B'. 'A & B' means 'A is the son of B'...
Who sits adjacent to N?
I) The one who faces G
II) The one who faces S
III) The one who faces E
What is the total distance between point X and point T?
Complete the analogy.
49 : 65 :: 64 : ?
Select the related number from the given alternatives:
9 : ? :: 8 : 513
Six family members – A2, B2, C2, D2, E2, and F2 are sitting around a circular table facing away from the centre. B2 sits immediate left of A2. F2 is s...
Four words have been given, out of which three are alike in some manner, while one is different. Choose the odd one.
