UPSC Government Jobs Exams

Wheel X rotates at a uniform speed of 8 revolutions per minute and wheel Y rotates at a uniform speed of 40 revolution per second. How long after they start rotating simultaneously,will wheel Y have e

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'Hotel' to 'menu' is as 'Library' to :



 When asked how many gold coins he had, the collector said,: If I arrange them in stake of five, none are left over. If I arrange them in stake of six, none are left over. If I arrange them in stak