Question

6 A diver was collecting water samples from a lake. He collected a sample al evey Herval of a
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?
7 Ranjan went to play with 60 marbles. In 8 games he gained
(-5) marbles each and in 4 games he gained 4 marbles each,
marbles did Ranjan have at the end?
A submarine moved from the water surface at a speed of
(-20) m per minute. How far is the submarine from the water
surface at the end of 7 minutes?
(Hint: Consider the water surface level as zero.)​

Answer 1

Answer:

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

Answer 2

Answer:

6. 35÷5=7 samples were collected.

7. 8×-5=40,

4×4=16

So, 80-40=40+16=56 marbles