Question
Find the first terms and common difference of an A.P. whose $t_8=3$ and $t_{12}=52$.
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Height
|
No. of trees
|
|
Less than 7
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26
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Less than 14
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57
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Less than 21
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92
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Less than 28
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134
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Less than 35
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Less than 42
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Less than 49
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Which term of the AP $21, 18, 15, ....$ is $-81$?
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→|
Size of item
|
$1-4$
|
$4-9$
|
$9-16$
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$16-27$
|
|
Frequency
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$6$
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$12$
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$26$
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$20$
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