A envelop weight 8.5 gm,if 850 of these envelop are sent with an advertisement mail. How much wieght?
Choose the correct choice from the following choices.
A) 6.6 kg	B) 7.225 kg	C) 6.7 kg	D) 6.9 kg	E) 7.8 kg

Rationale: 850 * 8.5 7225.0 gm 7.225 kg answer : b
Answer: B