Simplify
\(\, x^{9} \times x^{5} \times x^{-4} \times x^{0} \times x^{-6} \)
The following table shows the number of different items in different shops and their respective selling prices per unit.
| Shops | Total No. of Items | AC : Cooler : Fan |
Selling Price per unit
|
||
| Cooler | AC | Fan | |||
| A | 5000 | 4 : 5 : 1 | 8000 | 25000 | 8500 |
| B | 1800 | 3 : 2 : 4 | 10000 | 20000 | 16000 |
| C | 3400 | 6 : 4 : 7 | 6000 | 42000 | 15000 |
| D | 3600 | 4 : 2 : 3 | 12000 | 32000 | 8000 |
| E | 4000 | 5 : 1 : 4 | 8000 | 26500 | 12200 |
| F | 1210 | 2 : 4 : 5 | 11000 | 28000 | 11100 |
Find the percentage of total revenue which comes from Cooler from shop E, considering all given items are being sold from shop E and from all the given shops only given three items are being sold. (Rounded off to three decimal places)
The following table shows the marks (in percentages) obtained by six students in four different subjects in an examination. Maximum marks in each subject are 100.
| Student |
SUBJECT
|
|||
| SST | PHYSICS | CHEMISTRY | MATHS | |
| A | 92 | 90 | 90 | 80 |
| B | 90 | 80 | 85 | 85 |
| C | 80 | 80 | 65 | 70 |
| D | 85 | 80 | 82 | 75 |
| E | 80 | 75 | 75 | 85 |
| F | 90 | 90 | 90 | 85 |
Answer the following questions based on the table.
What is the number of students whose overall percentage obtained is 80% and above?
The table given below shows the number of persons participating in a survey from 6 different states.
| States | Persons |
| S1 | 100 |
| S2 | 200 |
| S3 | 400 |
| S4 | 500 |
| S5 | 600 |
| S6 | 800 |
What is the ratio of number of person participating in a survey from state S3 to the number of person participating in a survey from state S4?