The amount of air present in the cylinder when a vacuum pump removes each time 1/4 th of their remaining in the cylinder.
Will this sequence form an AP in this situation?
( Note :- Volume means quantity contained in a container)
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Let the amount of air present in the cylinder x units.
1/4x×=3 x/4 units.
1/4 x3 x /16 units.
air remaining= 3×/4-3/16.
= 12×-3×/16
=9×/16
x,3×/4,9×/16...
common difference (d)=9×/16-3×/4
=9×=12×/16
=-3 x/16
common difference (d)=3×/4- x
=3×-4×/4
x/4.
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