Amarathon is a 26-mile race. in a training regime for a
marathon, a runner runs 1 mile on his first day of training and
increases his distance by 1
4
of a mile each day.
(a) after how many days has he run a total of 26 miles?
(b) on which day does he first run over 26 miles?

if you use photomath right away it will give you the answer not like this app that you have to wait for people.

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

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answer4 to the second power is 16

and 4 to the third power is 64,