1 Wang Hai borrows 50,000 yuan for business, with monthly interest of 10%. He decided to use the money he earned to pay off the principal and interest of the loan in one lump sum within six months. Ask Wang hai First month: 5( 1+ 10%)=5.5.

Second month: 5.5( 1+ 10%)=6.05.

The third month: 6.05 (1+10%) = 6.655.

The fourth month: 6.655 (1+10%) = 7.3205.

The fifth month: 7.3205 (1+10%) = 8.0526.

The sixth month: 8.0526 (1+10%) = 8.8578.

5( 1+ 10%)^6=8.8578

Earn at least 8.8578/6 =1.4763 ≈1.48 million yuan per month on average.