3. Mahima is rewarded with 5 by her brother every time she wakes up on time. She has to pay
back 2 to her brother if she wakes up late. If at the end of the month of July, Mahima has 106
with her, find the number of days Mahima did not wake up on time?
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Step-by-step explanation:
Total number of days in July = 31
Number of days she wakes up on time = x
Number of days she wakes up late = 31-x
Rewarded points for = 5x
Taken back points = 2(31-x)
= 62-2x
Total points = 106
5x-(62-2x) = 106
5x-62+2x = 106
7x-62 = 106
7x = 168
x = 24
Number of days she wakes up on time = 24 days
Number of days she wakes up late = 31-24
= 7 days
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