A boy earns Rs. 20.56 on Monday, Rs. 32.90 on Tuesday, Rs. 20.78 on Wednesday. He spends half of all that he earned during the three days. How much has he left ?
In August 1980, according to a new your. Times/CBS news poll, 36 percent of the voters called themselves Republicans or said they were independents leaning toward being Republicans. In November 1984, the Republican figure rose to 47 percent. But in the latest Times/CBS survey, the Republicans were down to 38 percent. Therefore, the Democrats are likely to win the next election.
Which of the following, if true, would most seriously weaken the above conclusion ?
A mixture contains alcohol and water in the ratio of 12 : 5. On adding 14 litres of water, the ratio of alcohol to water becomes 4 : 3. The quantity of alcohol in the mixture is
