flyhigh1234 flyhigh1234

16-01-2021
Mathematics

contestada

There are 12 varieties of birds in a zoo, the number of each variety being
double of the number of another variety. If the number in the first
variety is 3, find the number in the last variety and also total number of
all varieties of birds in the zoo.maths gp

Respuesta :

cwrw238 cwrw238

16-01-2021

Answer:

below

Step-by-step explanation:

Geometric series with first term 3 and common ratio r.

Last variety = 3 * 2^(12-1) = 6144.

Total = 3 * (2^12 - 1) / (2-1)

= 12285

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