Question

15 iron ball of same size weigh 10kg 50 g. How many of them will weigh 4 kg 690 g?

Answer 1

Answer:

7 balls have 4 kg 690 g mass

Step-by-step explanation:

mass of 15 balls = 10 kg + 50g = 10050 g

10050 g is mass of 15 balls

1 g = 15/10050 balls

4kg + 690 g = 4690 g

so, 4690 g = (15/10050)*4690  = 7 balls