Kabir’s mother keeps a record of his height on each birthday. When he
was one year old, his height was 70cm, at 2 years he was 80cm tall and
3 years he was 90cm tall. His aunt Meera was studying in the 10th
class. she said. “It seem like Kabir’s height grows in Arithemetic pro
gression.” Assuming this, she calculated how tall kabir will be at the
age 15 years when he is in 10th ! She was shocked to find it. You to
assume that Kabir grows in A.P. and find out his height at the age of 15 years
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HELLO SAMEER MORE
I'M YOUR CLASSMATE
IDENTIFY WHO I AM ?
FROM CAMBRIGE VIDYALAYA
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ANSWER :
LET
A = 70 CM
D = 80 - 70
:. D = 10 CM
N = 15 YEARS
Tn = A+(N-1)D
T15 = 70+(15-1)10
= 70+140
= 210 CM
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ANS IS 210 CM
HOPE IT HELPS !
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