Question
Rahul, Rohit, and Raj alone can complete a project in
40, 80, and 120 days respectively. All of them started working together, but after 10 days, Rahul left the job, and 12 more days later, Rohit also left the job. So for how many days did Raj work?Solution
 Total work = LCM of 40, 80, and 120 = 240 units.  Rahul's daily work = 240/40 = 6 units.  Rohit's daily work = 240/80 = 3 units.  Raj's daily work = 240/120 = 2 units.  Work done in the first 10 days = 10 × (6 + 3 + 2) = 110 units.  Work done by Rohit and Raj together in the next 12 days = 12 × (3 + 2) = 60 units.  Remaining work = 240 - 110 - 60 = 70 units.  Time taken by Raj alone to complete the remaining work = 70/2 = 35 days.  Total days Raj worked = 10 + 12 + 35 = 57 days
Whose family consists of total three members?
Which of the following can be coded as ‘sip zdp’?
If Reena exchanges position with Manish; and the one who teaches Maths exchanges position with Shabnam, who will be sitting at the extreme ends of row 1?
Height-wise, who among the following lies between Sohan and Rahul?
Which of the following combination is false?
Who among the following is designated as CGM?
How is S related to Q?
Priya is older than her cousin Manvi, Manvi's brother Bhaskar is older than Priya. When Manvi and Bhaskar are visiting Priya, all three like to play a g...
Six persons N, O, P, Q, R and S live in a six storey building but not necessarily in the same order. The bottommost floor is numbered as 1st and the top...
Which of the following statements is/are true?
Relevant for Exams:
