Question

Amina prepared a fruit salad by taking some blueberries, some strawberries, some cherries and some grapes. If she used double the number of blueberries as
strawberries and triple the number of grapes as cherries, find the number of strawberries used by her, given that she used a total of 20 fruits.

Answer 1

Given   :  Amina prepared a fruit salad by taking some blueberries, some strawberries, some cherries and some grapes.

 she used double the number of blueberries as  strawberries and

triple the number of grapes as cherries,

she used a total of 20 fruits.

To  find : the number of strawberries used by her

Solution:

Strawberries  =  A

blueberries  = 2A

cherries, = B

 grapes =3B

Total = A + 2A + B + 3B   = 20

=> 3A  + 4B  = 20

A =4  , B  = 2  

Strawberries  =  4

blueberries  = 8

cherries, = 2

 grapes = 6

number of strawberries used by her  =  4

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