Sheila Chong

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About Sheila Chong

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  1. Sheila Chong added a post in a topic What’s the least number?   

    Not men = 100 - 59 = 41
    Least no of men who are card collectors = 72 - 41 = 31

    Out of these 31 men, there may be (100 - 81 = 19) non-college grads;
    thus least no of men who are card collectors and college grads = 31 - 19 = 12

    Out of these 12 men, there may be (100 - 89 = 11) who are left-handed;
    thus least no of men who are card collectors and college grads and are right-handed = 12 - 11 = 1
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