human
Lyka wants to buy a smartphone worth $160 but she only has $40 at the moment. She plans to save an equal amount of money per week for two months for the remaining amount that she needs. How much should she save per week?
assistant
How much does Lyka need to save? ** Lyka has to save a total of $160 - $40 = $<<160-40=120>>120 for two months.
How many weeks are in two months? ** There are 2 x 4 = <<2*4=8>>8 weeks in two months.
How much does Lyka need to save? ** Hence, Lyka needs to save $120/8 = $<<120/8=15>>15 per week.
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