Recent content by bala2014

By keeping $|B\cap S|$ = x , B = 27-x, S = 32-x, we know $|B\cup S|$ s 45. So we can form a equation 27-x+x+32-x = 45 where x= 59-45 = 14.

Thank you very much

Sixty six cats signed up for the contest MISS CAT 2013. After the first round 21 cats were eliminated because they failed to catch a mouse. Of the remaining cats, 27 had stripes and 32 had one black ear. All striped cats with one black ear got to the final. What is the minimum number of...

By drawing two circles, Mike obtained a figure, which consists of three regions (see picture). At most how many regions could he obtain by drawing two squares? (A) 3 (B) 5 (C) 6 (D) 8 (E) 9