Question

Avanthi bought a total of 30 oranges and mangoes. After eating 0.5 of the oranges and 0.2 of the mangoes, she had 21 fruits left. How many oranges did she eat?

A. 5
B. 4
C. 9
D. 12

Answer the question with proper expalnation.

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Answer 1

Step-by-step explanation:

Avanthi bought a total of 30 oranges and mangoes. After eating 0.5 of the oranges and 0.2 of the mangoes, she had 21 fruits left. How many oranges did she eat?

Answer 2

Answer:

A.5

Step-by-step explanation:

let number of oranges be x

      then number of mangoes=30-x

given that after eating 21 fruits are left so she ate 9 fruits

   0.5(x)+0.2(30-x)=9

   0.5x+6-0.2x=9

   0.3x=3

    x=10

So, she brought 10 oranges and 20 mangoes

           0.5 of 10=5