Gate Exam

If three eighth of a number is 1257,then one fourth of the number will be

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Gate Other Question

A die is rolled three times.The probability that exactly one one odd number turns up among the three out comes is? option- 1/2 ,3/8,18,1/6 A and B are working on a job.A is the builder and B is the demolition man.A takes 20 days to construct a wall completely.B takes 40 days to demolish it completely.How much time do they take to build the wall completely if they work alternatively.If A starts the work