Question

Let sum be x. We know S.I.=0.15x= 20 3 ​ x We know Time= P×R 100×S.I. ​ = x×10 100× 20 3 ​ x ​ = x×20×10 100×3x ​ = 2 3 ​ =1 2 1 ​ years =18 ,MonthsLet sum be x. We know S.I.=0.15x= 20 3 ​ x We know Time= P×R 100×S.I. ​ = x×10 100× 20 3 ​ x ​ = x×20×10 100×3x ​ = 2 3 ​ =1 2 1 ​ years =18 ,Monthsa square root of a number x is a number y such that y2 = x; in other words, a number y whose square (the result of multiplying the number by itself, or y ⋅ y) is x.[1] For example, 4 and −4 are square roots of 16, because 42 = (−4)2 = 16. Every nonnegative real number x has a unique nonnegative square root, called the principal square root, which is denoted by {\displaystyle {\sqrt {x}},}{\displaystyle {\sqrt {x}},}[2] where the symbol {\displaystyle {\sqrt {~^{~}}}}{\displaystyle {\sqrt {~^{~}}}} is called the radical sign[3] or radix. For example, the principal square root of 9 is 3, which is denoted by {\displaystyle {\sqrt {9}}=3,}{\displaystyle {\sqrt {9}}=3,} because 32 = 3 ⋅ 3 = 9 and 3 is nonnegative. The term (or number) whose square root is being considered is known as the radicand. The radicand is the number or expression underneath the radical sign, in this case 9.​

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