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Margaret observed that in a campus interview, only 75% of the candidates who were interviewed got selected. 120 girls were selected. `5/6` of those who did not get selected were girls. The remaining number of people who did not get selected were 10 boys. It was found that only boys and girls took part in the interview. Of the total nu ...
In a selection test for the army, 40% of the cadets failed. 108 male cadets passed the test. The remaining `11/17`of those who passed were female cadets. 51 female cadets failed the test. What percentage of the total number cadets who appeared for the test were boys who failed?
In a stadium, 15% of the audience watching a horse race were women. `17/20` of the men did not wear hats. 39 women wore hats. The remaining `7/20` of the women did not wear hats. (a) How many people in the audience were men who wore hats? (b) How many women did not wear hats? ...
John bought 18 calculators and shirts. In the process, he spent a total of $171. A calculator costs $4.50 more than a shirt. A shirt costs $8. (a) How many calculators did he buy? (b) How many shirts did he buy? Notes to student: ...
I am thinking of a number. When I shift the decimal point of the number to the right twice, I get a number that is 9954.45 greater in value than the original number. What is the number that I am thinking of?
A card has a number written on it. The decimal point of the number is shifted 2 places to the left. The difference between the original number and the new number is 99.594. What is the original number?