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Q.
A box contains 90 screws 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.
10.5 kgs
B.
12 kgs
C.
9.6 kgs
D.
11.5 kgs
View Answer
Correct choice: D
Explanation:
Screws weight = 90x100 = 9000gms bolts weight = 100 x 150 = 15000gms weight = screws + bolts => 24000 gms =>24 kg Given entire box weight = 35.5kg empty box = entire box weight - weight => 35.5kg - 24kg => 11.5kg so the empty box is 11.5kg.
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