Sandy is m years old now. She has two older brothers, Keddy and Cheko, who often look after her. Keddy is 5 times as old as Sandy. Cheko is 23 years older than Keddy. How old was Cheko 7 years ago?
Question
Sandy is m years old now. She has two older brothers, Keddy and Cheko, who often look after her. Keddy is 5 times as old as Sandy. Cheko is 23 years older than Keddy. How old was Cheko 7 years ago?
Solution
Step 1: Determine Keddy's age in terms of m. Since Keddy is 5 times as old as Sandy, Keddy's age is 5m.
Step 2: Determine Cheko's age in terms of m. Since Cheko is 23 years older than Keddy, Cheko's age is 5m + 23.
Step 3: Determine Cheko's age 7 years ago. Since we know Cheko's current age in terms of m, we subtract 7 from this to find his age 7 years ago. So, Cheko was 5m + 23 - 7 = 5m + 16 years old 7 years ago.
Similar Questions
Anisa is m years old now. She has two older brothers, Keddy and Cheko. Keddy is 5 times as old as Anisa. Cheko is 11 years older than Keddy. How old was Cheko 2 years ago? (Leave your answer in term of m)
Cheko and Keddy are recording down their ages during the annual health check. The ratio of Cheko's age to Keddy's age is 3 : 5. In 7 years' time, their total age will be 38. What is Keddy's age 15 years from now?
After five years the age of a father will be thrice the age of his son whereas five years ago, he was seven times old as his son was.What is father's present age?30 years40 years50 yearsNone of these
Michelle is 7 years older than her sister Joan, and Joan is 3 years younger than their brother Ryan. If the sum of their ages is 64, how old is Joan?
Jane is 10 years younger than John. Twelve years ago, John was twice as old Jane. How old iseach now?
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.