Left-handed

There are 100 people in a room, 99% of whom are left-handed. How many left-handed people must leave the room to reduce this proportion to 98%?

Correct answer:

x =  50

Step-by-step explanation:

n=100 r1=99%=10099=0.99 r2=98%=10098=5049=0.98  L=r1 n=0.99 100=99 P=nL=10099=1  nxLx = r2  Lx=r2 (nx) 99x=0.98 (100x)  0.02x=1  x=0.021=50  x=50



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