CASE STUDY 2:
Your friend Veer wants to participate in a 200m race. He can currently run that
distance in 51 seconds and with each day of practice it takes him 2 seconds less. He
wants to do in 31 seconds.
1. Which of the following terms are in AP for the given situation
a) 51,53,55....
b) 51, 49, 47....
Answers
Answer:
(b)
Step-by-step explanation:
when 1st day he take time =51sec
2nd day he take 2 sec less=51-2=49
so are ap is 57,49,47
Answer:
The given situation can be expressed in an arithmetic progression (AP), where the terms decrease by 2 seconds each day. Thus, the AP will be 51, 49, 47....
Step-by-step explanation:
From the above question,
They have given :
Your friend Veer wants to participate in a 200m race. He can currently run that distance in 51 seconds and with each day of practice it takes him 2 seconds less. He wants to do in 31 seconds.
ANSWER :
Veer needs to heavy practice, after practice for 20 days in order to reach his goal. After 20 days, he will be able to run 200m in 31 seconds.
1. Which of the following terms are in AP for the given situation
a) 51,53,55....
b) 51, 49, 47....
ANSWER :
a = First term = 51 secs
reduce time daily by 2secs
d = - 2
last term = 31
31 = 51 + (n - 1)(-2)
10 = n - 1
n = 11
11 Terms
51 , 49 , 47 , 45 , 43 , 41 , 39 , 37 , 35 , 33 , 31
b) 51, 49, 47....
Because Veer need to practice. Because of his practice, The timing required to cover the distance can be reduced.
The given situation can be expressed in an arithmetic progression (AP), where the terms decrease by 2 seconds each day. Thus, the AP will be 51, 49, 47....
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