Question

15 iron balls of same size weigh 10kg 50 gm. how many of them will weigh 4kg 690 gm

Answer 1

Answer:

7 Balls

Step-by-step explanation:

15 Iron Balls = 10kg 50gm

10kg 50gm = 10.050 kg or 10050 grams

So, 1 Iron Ball = $\frac{10050}{15}$ = 670 grams

To find number of balls needed = $\frac{4690}{670}$gm = 7 Balls