Question

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

Answer 1

Answer:

He took 11 samples

Step-by-step explanation:

We can use AP here

A is 5 and An is 35

d is 3

so

wkt

An = A +(n-1)d

35 =5 + (n-1)3

30 =(n-1)3

n-1 = 10

n = 11

Thus he took 11 samples