$20,000 is not deposited: a certain amount which will accumulate

to $20,000 is deposited on Mar 26.

days = 274 - 85 = 189

interest = .0375 / 365 * 189 = .0194 (rounded)

x = amount deposited on Mar 26; then:

x + .0194x = 20000

1.0194x = 20000

x = 20000 / 1.0194 = 19,619.38 (rounded)

Got that?