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Let, after x days A leave. Let the total work is the 120 units (LCM of 30 and 40) Efficiency of A is 120 / 30 = 4 units The efficiency of B is 120/40 = 3 units So, after x days they both work together. According to the question, (4+3) x x + 25 x 3 = 120 7x + 75 = 120 7x = 45 x = 45/7 days =6(3/7)days.
If 10 9 38 x 5428
Then, 2x² + 1 = ?
...13 24 75 134 447 892
...11 33 66 112 173 ? .
3 5 7 25 8...
The series given below contains a sequence of numbers. Accordingly identify the incorrect number.
85, 84, 81, 88, 77, 92, 72
40 41 86 ? 1084 5445
...12 11 21 62 ? 1234
Direction: Which of the following will replace ‘?’ in the given question?
10, 12, ‘?’, 27, 36, 45, 54, 63, 72
112 162 199 ? 242 252
...6 16 116 566 2272 6814
11 a�...
