Question

A mechanic bought bolts of three sizes. The smallest bolts cost 15 cents each. The next largest sized bolts cost 20 cents each, and the largest sized bolts cost 30 cents each. The mechanic spent as little money as possible but spent the same amount on each bolt size. How much did she spend on the largest bolts?

Answer 1

He spent the same amount on each bolt size...so we need to find the lowest common multiple of 0.15, 0.20, and 0.30....and that would be 0.60

so he spent 0.60 on each bolt