There are 40 pupils in a class. 60% of the class are girls. 12.5% of the boys are Indians, 25% are Malay and the rest are Chinese. How many Chinese boys are there? (A)16 (B)10 (C)24 (D)20
60% of 40 = 60*40/100= 24 No of boys = 60-24 =16 12.5 % of boys (Indians) =16 * 12.5 /100 = 200/100 =2 25 % 0f boys (Malay) = 25 * 16 /100 = 400/100 = 4 No. of Chinese boys = 16- 2-4 = 10 ans: 10 Chinese boys