There are 6 people in the elevator. Their average weight is 154 lbs. Another person enters the elevator, and increases the average weight to 151 lbs. What is the weight of the 7th person.	Select.
A) 133	B) 168	C) 189	D) 190	E) 200
Solution   Average of 7 people after the last one enters = 151 .   âˆ´ Required weight = (7x151)-(6x154)   = 1057- 924= 
<gadget id="calculator">1057- 924</gadget>
<output>133</output>
133.   133nswer 133
<result>A</result>
There are 6 people in the elevator. Their average weight is 154 lbs. Another person enters the elevator, and increases the average weight to 151 lbs. What is the weight of the 7th person.