If 45 men can do a piece of work in 49 days, in how many days will 35 men do it?

NUMBER OF MEN | NUMBER OF DAYS |

45 | 49 |

35 | x |

since the number of men and number of days vary inversely,

so, 45 * 49 = 35 *

*x*

so,

*x =*(45 * 49) / 35 = 63

so, 35 men will require 63 days to complete the work.

**
**