Question

write wheather √245+√320/√25 on simplification gives irrational number or an rational number.

Answer 1

Irrational no because if we divide a irrational no. by a rational no. then result is irrational

Answer 2

Solution^☺️

RATIONAL NUMBERS

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The numbers which can expressed in the form of p/q where p and q are integers and q not equal to 0 are known as RATIONAL number.

IRRATIONAL NUMBER

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A number whose decimal expansion is non-terminating, non- recurring is known as IRRATIONAL number.

Given,

$\frac{\sqrt{245}+\sqrt{320}  }{\sqrt{25} } \\=>\frac{7\sqrt{5}+8\sqrt{5}  }{5} \\=>15\sqrt{5} /5\\=>3\sqrt{5}\\ => 3*2.23606797\\=>6.70820....$

Its Irrational number.