Subject
Quantitative Aptitude
Topic
Ratio
If 32 students in a class are female and in the class the ratio of female students to male students is 16 : 9, what percentage of the class is female?
If 32 students in a class are female and in the class the ratio of female students to male students is 16 : 9, what percentage of the class is female?
ক)
32%খ)
36%গ)
56.25%ঘ)
64%Explanation
ধরি, ছাত্রী সংখ্যা 16x এবং ছাত্র সংখ্যা 9x তাহলে, 16x = 32 ⇒ x = 2 ছাত্র সংখ্যা = 9.2 = 18 মোট ছাত্রছাত্রী সংখ্যা = 32+18 = 50 শতকরায় ছাত্রী সংখ্যা = (32/50) x 100 = 64%Related questions
The ratio of two number is 3 : 5 and their sum is The greater of the two numbers is—729 ml of a mixture contains milk and water in ratio 7: How much of the water is to be added to get a new mixture containing half milk and half water?The ratio of two numbers is 3:4 and their sum is The greater of the two numbers isThe ratio between two numbers to 3:4 and their least common multiple is What is the first number?a container holds 4 quarts of alcohol and 4 quarts of water. How many quarts of water must be added to the container to create a mixture that is 3 parts alcohol to 5 parts water by volume?Two equal glasses are respectively one-third and one-fourth full of milk. They are then filled up with water and the contents are mixed in a tumbler. Ratio of milk and water in tumbler is:The present ages of A and B are as 6 : Five years ago their ages were in the ratio 5: Find their present ages.Gold is 19 times as heavy as water and copper is 9 times as heavy as water in what ratio should this be mixed to get an alloy r 15 times as heavy as water :