Question

If 45m of uniform rod weighs 171kg , what will be the weight of 12m of the same rod ?

Answer 1

Answer:

If 45m of uniform rod weighs 171kg

We have to find wight for 1 m

45 m has weight = 171 kg

Divide it by 45

45/45 = 171/45

1 m has weight = 171 /45 kg

1 m has weight = 19/5 kg

1 m has weight = 3.8 kg

Now for 12 m rod

Multiply the above equation by 12

12*1 has weight of = (3.8) *12 kg

12 m of has weight of = 45.6 kg