In a birthday party attended by 40 guests, a dance contest was held. The following participated in the dance contest: 18 danced the hip-hop dance, 20 danced the ballroom dance and 5 danced the two pieces.
a. How many danced the hip-hop dance only?____
b. How many danced the ballroom dance only?____
c. How many danced both the hip-hop and the ballroom dance?___
d. How many did not dance any of the two pieces?____
e. How many danced the ballroom or the hip-hop dance?
a. How many danced the hip-hop dance only?____
b. How many danced the ballroom dance only?____
c. How many danced both the hip-hop and the ballroom dance?___
d. How many did not dance any of the two pieces?____
e. How many danced the ballroom or the hip-hop dance?
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Answer:
a. 18 danced hip-hop only
b. 20 danced ballroom dance only
c. 38 both danced hip-hop and ballroom dance
d.5 did not danced of any two pieces
e.20 and 18