4 teachers

A mathematics teacher has to take a class for 1 hour at any time between 9 A.M. to 2 P.M. What is the probability that the class would be taken from 1 P.M. to 2 P.M.? => 1 7 or 1 6 or 1 4 or 1 5..

Teachers organized a play for the annual day function in a school. Ms.Zelma takes 6 hours to dress up the children participating in the play. Ms.Alice takes 9 hours time to do the same job. How long would it take for both of them to dress all the children, if they worked together? => 7 ho..

A teacher wishes to estimate the average weight of 10 students of grade 6 taken randomly. The weight(in pounds) of the students are shown. Find the 99% confidence interval for the variance for the weights of students. Assume that the variable is normally distributed. 90 88 96 85 91 93 82 ..

Danny is planning to open a candy store in the school canteen. Which of these strategies would help him learn the student′s choice? => He can survey few students from each grade for their favorite candy. or He can survey the school teachers for their favorite candy. or He can survey..

1. The parents of these students do not place much importance on education. At the least provocation, they take the children out of school. Girl students are especially vulnerable. For them the household chores - carrying water, looking after siblings and marriage are considered more important. 2...

Question: Change the following sentences into reported speech: 1. Mohan said, "I have lost my bat." 2. The soldiers told the captain, "We have enough food to last us for a month." 3. "When are you going to Chennai?" Ram asked Shyam. 4. "Have you got your salary?" the man asked h..

A teacher gave a test to a class of 26 students. The maximum mark is 5. The marks obtained by the pupils are: Such data as above is called ungrouped (or raw) data. We may arrange the marks in ascending or descending order. The data so represented is called an array. The difference between..

Question: Are we raising techno tots? The conversation on swirling wine the right way, the perils in investment banking and the heated debate on what should be done with Salman Khan was certainly not to four-year-old Nikhil Reddy's liking. Boredom clouding his impish face, he nudge..

Now the only unbalanced one is Chlorine. On the left hand side, there are 16 Cl. On the right hand side, there are 2 Cl in 2 KCl + 4 Cl in 2 MnCl 2 , making total of 6(2 + 4). So 10 more Cl are to be accounted. So place 5 in front of Cl 2 to make it 10 (5 x 2). It is not possibl..

(8 x 2) on the reactants side as well. Now the only unbalanced one is Chlorine. On the left hand side, there are 16 Cl. On the right hand side, firstly, there are 2 Cl in 2 KCl + 4 Cl in 2 MnCl 2 , making total of 6(2 + 4). Subsequently 10 more Cl atoms are to be accounted for. ..