KnowledgeBoat Logo
|

Mathematics

Assertion (A) : 9 % of 0.0169\sqrt{0.0169} is 0.0117.

Reason (R) : To find a percentage of a quantity, we change the percentage to a fraction or a decimal and multiply it by the quantity.

  1. Both A and R are correct, and R is the correct explanation for A.

  2. Both A and R are correct, and R is not the correct explanation for A.

  3. A is true, but R is false.

  4. A is false, but R is true.

Percent & Percentage

1 Like

Answer

Solving,

9%×0.01699100×0.01699100×0.131.171000.0117\Rightarrow 9\% \times \sqrt{0.0169}\\[1em] \Rightarrow \dfrac{9}{100} \times \sqrt{0.0169}\\[1em] \Rightarrow \dfrac{9}{100} \times 0.13\\[1em] \Rightarrow \dfrac{1.17}{100}\\[1em] \Rightarrow 0.0117

So, assertion (A) is true.

To find a percentage of a quantity we change the percentage to fraction or a decimal and multiply it by the quantity.

For example; 20% of a.

= 20100\dfrac{20}{100} x a

= 0.2 x a

= 0.2a

So, reason (R) is true and reason clearly explains assertion.

Hence, option 1 is the correct option.

Answered By

2 Likes


Related Questions