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.
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:
\[23\frac{26}{121}\]
Find the square root of:
\[25\frac{544}{729}\]
Find the smallest number by which 10368 be divided, so that the result is a perfect square. Also, find the square root of the resulting numbers.
Evaluate `sqrt(25/32 xx 2 13/18 xx 0.25)`
If `sqrt784` = 28, find the value of:
`sqrt(0.0784) + sqrt(0.000784)`
Find the square root of:
`(507)/(4107)`
Give reason to show that none of the numbers, given below, is a perfect square.
(i) 2162
(ii) 6843
(iii) 9637
(iv) 6598
State, whether the square of the following number is even or odd?
54
Find three numbers in the ratio 2 : 3 : 5, the sum of whose squares is 608.
