Caitlin had 402. In her bank account. she withdrew $15. each week to pay for swimming lesson. She now has $237.

Amount of money that Caitlin in her account = $ 402

In each week, she withdrew $ 15.

Let number of weeks she had paid money for Swimming lesson = $ 237

Writing the above statement in equation form

⇒ 402 - 15 n = 237

⇒ 402 - 237 = 15 n

⇒ 15 n = 165

Dividing both side by 15, we get

n = 11

→Number of weeks that Caitlin had learnt Swimming = 11 Weeks