Question

Linda did jumping jacks every night for a week.She did 75 on each of the first three nights and 2 times as many on each of the remaining nights.How many total jumping jacks did Linda do that week?​

Answer 1

Total number of jumping Jacks by Linda in 7 days = 825

Explanation:

Total number of days Linda jumped = 7 days

Now, for first 3 days, jumping jacks each day = 75

So, total jumping jacks in first 3 days = 75 x 3 = 225

Now, number of days left in the week = 7 days - 3 days = 4 days

Also, for next 4 days, jumping jacks each day = 2 x 75 = 150

So, total jumping jacks in last 4 days = 150 x 4 = 600

Hence, the Total number of jumping Jacks in 7 day

= Jumping Jacks in fist 3 days + Number of jumping jack in last 4 days

= 225 + 600

= 825

Hence, Total number of jumping Jacks by Linda in 7 days = 825