Answer :
He will have $3500 in his account.
It will take 20 months to pay off the tractor. $4000 divided by $200 is 20.
Take 20 times $150 and that is $3000.
Add $3000 to the $500 he already had in his account. That is $3500
It will take 20 months to pay off the tractor. $4000 divided by $200 is 20.
Take 20 times $150 and that is $3000.
Add $3000 to the $500 he already had in his account. That is $3500