<PRE><B>Question 83718</B>
TOTAL WEIGHT OF ALL WOMEN=20*130=2600 POUNDS.
3/4 OR .75 OF THE WOMEN AVERAGE 140 POUNDS. THUS THEY ACCOUNT FOR:
.75*20*140=2100 POUNDS. 
THAT LEAVES 2600-2100=500 POUNDS TO DISTRIBUTE AMONG THE REMAINING 1/4 OF THE WOMEN.
1/4*20*X=500 (X BEING THE AVERAGE WEIGHT OF THE REMAINING 1/4.
5X=500
X=500/5
X=100 POUNDS IS THE AVERAGE WEIGHT OF THE REMAINING 1/4.
PROOF
3/4*20*140+1/4*20*100=2600
2100+500=2600
2600=2600  </PRE>