The task is to generate the correct answer for a given math problem.

[EX Q]: Problem: lally ' s internet provider offers unlimited traffic which costs $ 0.5 per day charged off at 12 a . m . the service is discontinued when client ' s debt exceeds $ 5 . if today in the morning lally makes a payment of $ 7 , for how many days , including today , will she be connected to the internet without any additional payments , given her initial balance was $ 0 ?
[EX A]: 25

[EX Q]: Problem: find the sum the difference between the compound and s . i . on a certain sum of money for 5 years at 20 % per annum is rs . 75 of money ?
[EX A]: 1875

[EX Q]: Problem: if x 2 + kx - 3 , is divisible by ( x - 1 ) , what is the value of k
[EX A]:
2