5. Kedar's height was 70cm when he was one year old. His height increased to 80cm at 2 years, 90 cm at 3 years and he was 100 cm when he was 4 years old. If the increase in height happens at the same rate, what will be his height when he is 15 years old? • 990 cm I 160 cm • 210 cm • 210 cm
Answers
Answer:
210 cm
Step-by-step explanation:
Height at 1 year old = 70 cm
Height at 2 years old = 70 cm + 10 cm = 80 cm
Height at 3 years old = 80 cm + 10 cm = 90 cm
Height at 4 years old = 90 cm + 10 cm = 100 cm
Height at 5 years old = 100 cm + 10 cm = 110 cm
Height at 6 years old = 110 cm + 10 cm = 120 cm
Height at 7 years old = 120 cm + 10 cm = 130 cm
Height at 8 years old = 130 cm + 10 cm = 140 cm
Height at 9 years old = 140 cm + 10 cm = 150 cm
Height at 10 years old = 150 cm + 10 cm = 160 cm
Height at 11 years old = 160 cm + 10 cm = 170 cm
Height at 12 years old = 170 cm + 10 cm = 180 cm
Height at 13 years old = 180 cm + 10 cm = 190 cm
Height at 14 years old = 190 cm + 10 cm = 200 cm
Height at 15 years old = 200 cm + 10 cm = 210 cm
Hope this helps!
Answer:
The answer is 210 cm.
Step-by-step explanation:
1 year old = 70 cm
2year old = 70+10 cm =80 cm
3 year old = 80+10 cm = 90 cm
4 year old = 90+10 cm = 100 cm
5year old = 100 +10 cm = 110 cm
6 year old = 110+10 cm = 120 cm
Here the rate of growth of height is 10 cm / year.
So at the age of 15 years he will be :
70 cm + 140 cm = 210 cm
Because he has to grow 14 more years to become of 15 year so his height at 15 year is 210 cm.
Thanks I hope that you should understand.