A envelop weight 8.5 gm,if 820 of these envelop are sent with an advertisement mail. How much wieght?  Choose the correct choice from the following answers.
A) 6.6kg	B) 6.8kg	C) 6.7kg	D) 6.97kg	E) 7.8kg
820*8.5   6970.0gm   6.97kg   ANSWER:6.97kg
<result>D</result>
A envelop weight 8.5 gm,if 820 of these envelop are sent with an advertisement mail. How much wieght?