Ruchi, Jeetu and Teju can do a piece of work in 30, 40 and 60 days respectively. In how many days can Ruchi do the work, if she is assisted by both Khushi and Teju on every third day?
219 365 511 ? 803 949
...D irection: Which of the following will replace ‘?’ in the following series
300, 300, 301, 303, ‘?’, 324, 364
...261 256 246 231 211 ?
...130 136 148 166 ? 232
4 7 24 91 462 2763
18 ...
105 107 111 114 ? 127
73920, 9240, ?, 220, 44, 11
32, ?, 41, 68, 132, 257
...8 9 ? 57 164 945
...13 14 22.5 ? 120 363
...
