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Moves (correct tense): In this context, the present simple tense "moves" is appropriate as it describes a general, timeless fact about the Earth's motion around the sun. Options: (a) Has moved: This is the present perfect tense, suggesting a completed action. It is not suitable for describing the ongoing, continuous motion of the Earth. (b) Was moving: This is the past continuous tense and is not suitable for stating a general truth or fact. (c) Moves: This is the correct present simple tense, indicating the ongoing and continuous motion of the Earth. (d) Had moved: This is the past perfect tense, suggesting a completed action before another past action. It is not suitable for describing the current state or regular motion.
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P does one fourth as much work as Q in two third of the time. If together they take 24 days to complete the work, how much time shall Q take to do it?
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150 unit of work can be completed by P alone in 25 days. P started working alone and joined by Q after 15 days such that they completed the remaining wo...
The time taken by ‘A’ to build a wall alone is 50% more than the time taken by him to build it along with ‘B’. ‘B’ will take how much percen...
The time taken by ‘A’ to build a wall alone is 40% more than the time taken by him to build it along with ‘B’. ‘B’ will take how much percen...
Naina and Kalpana working together can do a piece of work in 10 days, whereas Naina alone can do it in 12 days. In how many days can Kalpana do it alone?
‘A’ alone can complete a work in 10 days. ‘B’ alone can complete the same work in 20 days. If ‘A’ and ‘B’ work together for 3 days, then...