Question

Kate wanted to buy 2 kgs of apples. The vendor kept the 2kg weight on the right side and weighed 4 apples for that. She doubted on the correctness of the balance and placed 2 kg weight on the left side and she could weight 14 apples for 2 kgs. If the balance was correct how many apples she would have got

Answer 1

Answer:

9

Step-by-step explanation:

let extra weight be x and weight of each apple is y

2kg=x+4y. x=2kg-4y ------1

14y=2kg+x. x=14y-2kg -----2

2-4y=14y-2

18y=4kg

y=4/18kg=2/9kg

for 2kg we get 2/(2/9)apples=9×2/2=9