Question

. 15 iron balls of same size weigh 10 kg 50 g.
How many of them will weigh 4 kg 690 g ?
(a) 8
(b) 10
(c) 5
(d) 7​

Answer 1

Answer:

ur ans is 7

Step-by-step explanation:

weight of 15 iron balls is 10 kg 50 g

=>1kg=1000g

=>10kg = (10*1000)

. =>10000+500

=>10500g

by unity method weight of 1 iron balls is 10500/15

=>700g

weight of x iron balls => 4 kg 690g

=> (4*1000)+690

=>4690g/15

=>7