20 people can write 50 book in 15 days working 8 hour a day . then in how many day 200 can be written by 60 people ?
"work per day epr hour per person = 50 / ( 15 * 8 * 20 ) / / eq - 1 people = 60 ; let suppose day = p ; per day work for 8 hours acc . to condition work per day epr hour per person = 200 / ( p * 8 * 60 ) / / eq - 2 eq - 1 = = eq - 2 ; p = 100 answer : b"
divide(multiply(50, 15), divide(60, const_2))