in a hostel 30 students have enough food for 40 days how many students should leave the hostel so that the food is enough for 10
1 answer:
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Hi! ❄
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The rule for this sequence is 'multiply by -6'.
Verification ↓
-3*(-6)18
18*(-6)-108
So the rule for the sequence is 'multiply by -6'
And the Common ratio is -6.
Hope that made sense !!
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Answer:
C
Step-by-step explanation:
The sum to n terms of a geometric sequence is
=
Here a₁ = 4 and r = - 3, thus
=
= = - (729 - 1) = - 728 → C