5 is added to a number and its square root is taken, the result is 25. What is the number?

320

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402

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520

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620

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Solution

The correct option is D
620

(i) Take the result 25.

(ii) Since square root was taken, we, square the number. Square of 25 = 625

(iii) 5 was added to it. So, subtract 5 from 625.we get 620.

Original number = 620

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Standard VIII Mathematics

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5 is added to a number and its square root is taken, the result is 25. What is the number?

The correct option is D 620 (i) Take the result 25. (ii) Since square root was taken, we, square the number. Square of 25 = 625 (iii) 5 was added to it. So, subtract 5 from 625.we get 620. Original number = 620

The correct option is D
620

(i) Take the result 25.

(ii) Since square root was taken, we, square the number. Square of 25 = 625

(iii) 5 was added to it. So, subtract 5 from 625.we get 620.

Original number = 620