If he works at an hour for $10He works seven hours a day∴ He gets $70 a day∴The number of days he takes to get $22197000 is 2219700070=317100 days\text{If he works at an hour for \ \$10} \\\\ \text{He works seven hours a day} \\\\ \therefore \text{ He gets \$70} \text{ a day} \\\\ \therefore \text{The number of days he takes to get \$22197000 } \,is\,\frac{22197000}{70}=317100 \text{ days}If he works at an hour for $10He works seven hours a day∴ He gets $70 a day∴The number of days he takes to get $22197000 is7022197000=317100 days