The crust of a certain pumpkin pie is 25 percent of the pie. By what percent should the amount of crust be reduced in order to make it 20 percent of the pie? (A) 5 (B) 10 (C) 15 (D) 20 (E) 25

sanju09 wrote:The crust of a certain pumpkin pie is 25 percent of the pie. By what percent should the amount of crust be reduced in order to make it 20 percent of the pie? (A) 5 (B) 10 (C) 15 (D) 20 (E) 25 25 - > 20 [spoiler]or a decrease of 5 over 25 = 20 % [/spoiler]

harshavardhanc wrote:sanju09 wrote:The crust of a certain pumpkin pie is 25 percent of the pie. By what percent should the amount of crust be reduced in order to make it 20 percent of the pie? (A) 5 (B) 10 (C) 15 (D) 20 (E) 25 25 - > 20 [spoiler]or a decrease of 5 over 25 = 20 % [/spoiler] I slightly doubt, anybody!

sanju09 wrote: I slightly doubt, anybody! me too! grrrrr....made a mistake....jumped the gun..... [spoiler]the answer will be 25% 1 in 4 parts is the crust so (1-x)/(4-x) = 1/5 is it correct now?[/spoiler]

harshavardhanc wrote:sanju09 wrote: I slightly doubt, anybody! me too! grrrrr....made a mistake....jumped the gun..... [spoiler]the answer will be 25% 1 in 4 parts is the crust so (1-x)/(4-x) = 1/5 is it correct now?[/spoiler] ok, granted

sanju09 wrote:The crust of a certain pumpkin pie is 25 percent of the pie. By what percent should the amount of crust be reduced in order to make it 20 percent of the pie? (A) 5 (B) 10 (C) 15 (D) 20 (E) 25 my two cents let it be all pie 100 crust-25 (25-x)/(100-x)=0,2 x=6,25 6,25/25=0,25*100=25% so E