00:01
Hello everyone in this question there are three parts in first part it is given that sarah cain study 20 pages per night and each page has three homework she study three nights we have to find the total homework problem she will do clearly total problem is equal to total number of pages multiply by number of homework in one page, that means 3, and this multiplied by total nights she studied, that means 3.
00:40
On multiplying this, we get 180.
00:44
Clearly sarah has done total homework 180 problem.
00:49
Clearly sarah will do total 180 homework problem.
00:54
In second part, it is given that everyone earns 80 quadluth per day cost of 1 zaryumbar is equal to 7 quatulth if someone worked for 3 days so we have to find how many zirumbars can be purchased by him or her clearly this is equal to 80 multiply by 3 days divided by 7.
01:30
On solving this, we get n is equal to 38.
01:36
Clearly, total 38 zerumbars can be purchased.
01:41
Now in case 3, a solution contains 5 gram of glucose in 100 ml.
01:48
Mass of 1 mole of glucose is equal to 180 gram.
01:54
We have to find number of moles in 200 mills...