Answers

2016-02-23T15:11:24+05:30
Total distance = 3/4 mile
she walks = 3/10 mile, jogs = 1/4 mile and let sprints = x
then,
3/10 + 1/4 + x = 3/4
lcm of 4 , 10 = 20
6 + 5 + 20x  = 15
11 + 20x = 15
20x = 15 - 11
20x = 4
x = 4/20
x = 1/5
so jen sprint for 1/5 mile
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