Advertisements
Advertisements
प्रश्न
The students of Class VIII of a school donated Rs 2401 in all, for Prime Minister’s National Relief Fund. Each student donated as many rupees as the number of students in the class. Find the number of students in the class.
Advertisements
उत्तर
It is given that each student donated as many rupees as the number of students in the class. The number of students in the class will be the square root of the amount donated by the students of the class.
| 7 | 2401 |
| 7 | 343 |
| 7 | 49 |
| 7 | 7 |
| 1 |
The total amount of the donation is Rs 2401.
Number of students in the class = `sqrt2401`
2401 = 7 × 7 × 7 × 7
∴ `sqrt(2401)` = 7 × 7 = 49
Hence, the number of students in the class is 49.
APPEARS IN
संबंधित प्रश्न
2025 plants are to be planted in a garden in such a way that each row contains as many plants as the number of rows. Find the number of rows and the number of plants in each row.
Find the square root of:
\[\frac{324}{841}\]
Find the square root of:
\[23\frac{26}{121}\]
The area of a square field is \[80\frac{244}{729}\] square metres. Find the length of each side of the field.
Find the square root of the following correct to two decimal place: `3 4/5`
Find the square root of the following correct to two decimal place: `6 7/8`
Find the square root of:
`(507)/(4107)`
If a number ends with 3 zeroes, how many zeroes will its square have?
Give reason to show that none of the numbers, given below, is a perfect square.
(i) 2162
(ii) 6843
(iii) 9637
(iv) 6598
Find three numbers in the ratio 2 : 3 : 5, the sum of whose squares is 608.
