Step 1
Use the ratio of the number to the percentage to get the required answer.
![\frac{Total\text{ number of students}}{\text{The required number of students}}=\frac{Total\text{ percentage of the class}}{\text{Given percentage}}](https://tex.z-dn.net/?f=%5Cfrac%7BTotal%5Ctext%7B%20number%20of%20students%7D%7D%7B%5Ctext%7BThe%20required%20number%20of%20students%7D%7D%3D%5Cfrac%7BTotal%5Ctext%7B%20percentage%20of%20the%20class%7D%7D%7B%5Ctext%7BGiven%20percentage%7D%7D)
Where,
![\begin{gathered} \text{The total number of students = 24} \\ \text{The required number }of\text{ students= x} \\ \text{The total percentage of the class = 100} \\ \text{Given percentage = 78} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%5Ctext%7BThe%20total%20number%20of%20students%20%3D%2024%7D%20%5C%5C%20%5Ctext%7BThe%20required%20number%20%7Dof%5Ctext%7B%20students%3D%20x%7D%20%5C%5C%20%5Ctext%7BThe%20total%20percentage%20of%20the%20class%20%3D%20100%7D%20%5C%5C%20%5Ctext%7BGiven%20percentage%20%3D%2078%7D%20%5Cend%7Bgathered%7D)
Step 2
Get the required answer
![\begin{gathered} \frac{24}{x}=\frac{100}{78} \\ 100x=24\times78 \\ 100x=1872 \\ \frac{100x}{100}=\frac{1872}{100} \\ x=\text{ 18.72} \\ \text{Hence} \\ x\approx19students\text{ rounded to a whole number } \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%5Cfrac%7B24%7D%7Bx%7D%3D%5Cfrac%7B100%7D%7B78%7D%20%5C%5C%20100x%3D24%5Ctimes78%20%5C%5C%20100x%3D1872%20%5C%5C%20%5Cfrac%7B100x%7D%7B100%7D%3D%5Cfrac%7B1872%7D%7B100%7D%20%5C%5C%20x%3D%5Ctext%7B%2018.72%7D%20%5C%5C%20%5Ctext%7BHence%7D%20%5C%5C%20x%5Capprox19students%5Ctext%7B%20rounded%20to%20a%20whole%20number%20%7D%20%5Cend%7Bgathered%7D)
The number of students that got B or a better grade on the test = 19 students rounded to a whole number.
Answer:
Gain of 300rs
Step-by-step explanation:
Sohan bougth a second-hand refrigerator for 2500rs
500rs was spent on it repairs
= 2500+500
= 3,000rs
It was sold for 3,300rs
Therefore the gain can be calculated as follows
= 3,300-3,000
= 300rs
Hence the gain is 300rs
Answer:
eleven point one hundred thirty two
Step-by-step explanation:
11 . 132
eleven point one hundred thirty two
Answer: 11.45 minutes
Step-by-step explanation:
To go to the surface
20x = 125
x = 6.25 minutes
To descend
20x = 104
x = 5.2 minutes
6.25 + 5.2 = 11.45 minutes in total
The answer is .6 because you divide 5 by 9 witch gives you .55555555 so round