Arithmetical Ability If $a_1, a_2, a_3$ and $a_4$ is the decreasing or…

Question

Arithmetical Ability

If $a_1, a_2, a_3$ and $a_4$ is the decreasing order of the elements in the set

$\left\{ \frac{2}{7}, \frac{7}{15}, \frac{5}{8}, \frac{9}{23} ight\} 	ext{ then } \frac{a_1 - a_4}{a_1 + a_4} =$

సమీతి $\left\{ \frac{2}{7}, \frac{7}{15}, \frac{5}{8}, \frac{9}{23} ight\}$ లోని మూలకాలు అవరోహణ క్రమం $a_1, a_2, a_3$ మరియు $a_4$ అయితే,

$	ext{అప్పుడు } \frac{a_1 - a_4}{a_1 + a_4} =$

#

Accepted Answer

D. $$\frac{19}{51}$$

1. Read the data: Arithmetical Ability
If $a_1, a_2, a_3$ and $a_4$ is the decreasing order of the elements in the set
$\left\{ \frac{2}.
2. Apply the standard arithmetic / algebraic identity for this form.
3. Working through gives the answer **D. $$\frac{19}{51}$$**.
_Source: APICET 2022 Q.158_

Answer

$\frac{2}{7}$

Answer

$$\frac{19}{56}$$

Answer

$$\frac{51}{56}$$