additional km.The amount of air present in a cylinder when a vacuum pu

1.	additional km.The amount of air present in a cylinder when a vacuum pump removes of theair remaining in the cylinder at a time.12metre of digging when it costs 150 for the
Answer» Let us assume, initial quantity of air = 1 Therefore, quantity removed in first step = ¼ Remaining quantity after first step =1−14=3/4 Quantity removed in second step =3/4×1/4=3/16 Remaining quantity after second step =3/4−3/16=12−3/16=9/16 Here each subsequent term is not obtained by adding a fixed number to the previous term. Hence, it is not an AP.

additional km.The amount of air present in a cylinder when a vacuum pump removes of theair remaining in the cylinder at a time.12metre of digging when it costs 150 for the

Answer»

Let us assume, initial quantity of air = 1

Therefore, quantity removed in first step = ¼

Remaining quantity after first step

=1−14=3/4

Quantity removed in second step

=3/4×1/4=3/16

Remaining quantity after second step

=3/4−3/16=12−3/16=9/16

Here each subsequent term is not obtained by adding a fixed number to the previous term.

Hence, it is not an AP.