A box contains 90 nuts each of 100 gms and 100 bolts each of 150 gms. If the entire box weighs 35.5 kg., then the weight of the empty box is :
A)10 kg
B)10.5 kg
C)11 kg
D)11.5 kg
E)None of the above
Total weight of nuts = 90*100 = 9 Kg
Total weight of bolts = 100*150 = 15 Kg
Total weight of box with nuts and bolts = 35.5 Kg
So the Answer is D