Question
Select the number from the given options which will come
in place of the question mark (?) in the following series. 18, 23, 30, 39, 50, ?Solution
The correct answer is D
A and B alone can complete a work in 30 and 60 days, respectively. 50% of the work is completed by C in 6x days, and the remaining work is completed by ...
Hema takes a total of 9 hours 55 min to walk a certain distance and then cycling back to the same place from where she had started. She could walk both ...
A, B and C can do a job working alone in 50, 75 and 20 days respectively. They all work together for 4 days, then C quits. How many days will A and B ta...
The total age of 'R' and 'D' eight years ago was thirty-six. Four years separate 'R' and 'D' in age. Determine the sum of total age (in years) between '...
Four bells start ringing together at 9:00 am. They ring at intervals of 15 seconds, 20 seconds, 30 seconds, and 40 seconds. At wh...
A can complete a certain work in 30 days. B is 25% more efficient than A and C is 20% more efficient than B. They all worked together for 3 days. B alon...
A and B can do a certain work in 6 hours, and A, B and C together take 4 hours to do the same. How long will it take for C alone to accomplish the task?
X, Y and Z together can complete a work in 15 days. X and Y together can complete the same work in 30 days. Z alone can finish the same work in how man...
Three bells ring at interval of 36 seconds, 40 seconds and 48 seconds respectively. They start ringing together at a particular time. They will ring tog...