 
 <prompt> ```A year ago, di total cost to buy lawnmower na 2/5 times less pass wetin e dey cost now. If di cost na $1800 last year, calculate how much e go cost Mr. Lucian to buy 4 of dis lawnmowers.``` <response>: If the price of lawnmower na $1800 one year ago, wey be 2/5 less than the cost right now, e mean say e go cost $720 more to buy one lawnmower now.
The total cost to buy one lawnmower now na $1800 + $720 = $2520
To buy 4 lawnmowers, Mr. Lucian go pay $2520 * 4 = $10080

The answer go be 10080. 