Question
Arjun, Binny, and Chiku can collaborate to finish a
particular task in 12 days. Additionally, Arjun and Binny working together can complete the task in 15 days. Given that Binny is 50% more effeicient than Chiku, how many days will it take for Arjun to complete the task on their own?Solution
ATQ, Let the total work = 60 units (LCM of 12 and 15) Amount of work done by Arjun, Binny and Chiku together in one day = 60/12 = 5 units Amount of work done by Arjun and Binny together in one day = 60/15 = 4 units Amount of work done by Chikku alone in one day = 5 – 4 = 1 unit Amount of work done by Binny alone in one day = 1 × 1.50 = 1.5 units Amount of work done by Arjun alone in one day = 4 – 1.5 = 2.5 units Time taken by Arjun alone to complete the work = 60/2.5 = 24 days
17 32 99 ? 1965 11784
...77 ? 190 257 331 412
...Given below are three numbers series I, II and II where each series contains a wrong (odd one out) term. The wrong number in series I, II and III are '...
91   93   97   100   ?   113
12 Â Â Â 11 Â Â Â Â 21 Â Â Â Â 62 Â Â Â Â ? Â Â Â Â Â 1234
13 15 ? 63 143 293
...102     153      306      765       ?     8032.5
...17 ? 33 44 57 72
...3 5 7 25 85 481
...1 4 13 46 ? 976
...
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