There are 1000 junior and 800 senior students in a class. And there are 60 sibling pairs where each pair has 1 junior and 1 senior.1 student is chosen from senior and 1 from junior randomly.What is the probability that the two selected students are from a sibling pair?
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There are Brown and Black cows. In five days four black cows and 3 brown cows give as mush as milk that four brown cows and 5 black cows give in four days. If the black cow gives 10 litres of milk per day, how many liters of milk the Brown cow will give in one day? (Numbers are not certain)
A new apartment complex purchased 60 toilets and 20 shower heads. If the price of a toilet is three times the price of a shower head, what percent of the total cost was the cost of all the shower heads?
The committee on sexual discrimination in the workplace has highlighted Supremo Company as a chief offender. Of the twenty senior executives in the firm, only one is a woman. And of the forty junior executives, only five are female. Supremo could best defend itself against the charges by showing that .ten times more men than women apply for jobs with the company all job applicants who were rejected had fewer qualifications than those accepted they pay the same salary to senior men and senior women male and female executives at the same level have the same qualifications
A person pays a tax of 10%,if his salary increases by 10% he need to pay a tax of 15%.The total gain he obtains after increment in salary is 350Rs .What is his salary?
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In a company 30% are supervisors and 40% employees aare male if 60% of supervisors are male what is the probability that is randomly choosen employee is a male or female?
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