A driver was collecting water samples from a lake .He collected a sample at every interval of 3m,starting at 5m below the water surface .The final sample was collected at a depth of 35m.How many samples did he collect?

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Solution

Hi,
From this question
a=5
d=3
a n =35
so the formula is an=a+(n-1)d
35=5+(n-1)3
n=(35-5)/3
10
so the 10th samples.

Regards

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A driver was collecting water samples from a lake .He collected a sample at every interval of 3m,starting at 5m below the water surface .The final sample was collected at a depth of 35m.How many samples did he collect?

Hi, From this question a=5 d=3 a n =35 so the formula is an=a+(n-1)d 35=5+(n-1)3 n=(35-5)/3 10 so the 10th samples. Regards

Hi,
From this question
a=5
d=3
a n =35
so the formula is an=a+(n-1)d
35=5+(n-1)3
n=(35-5)/3
10
so the 10th samples.

Regards