Question

4 1/10 - [2 1/2-{5/6-(2/5+3/10-4/15)}]​

Answer 1

Solution↷

$[4 \frac{1}{10} - 2 \frac{1}{2} - \{ \frac{5}{6} ( \frac{2}{5} + \frac{3}{10} - \frac{4}{15}) \}]$

$= \frac{4 \times 10 + 1}{10} - [ \frac{2 \times 2 + 1}{2} - \{ \frac{5}{6} - \\( \frac{2 \times 6 + 3 \times 3 - 4 \times 2}{30} )] \\ = \frac{41}{10} - [\{ \frac{5}{2} - \frac{12 + 9 - 8}{30} \}] \\ = \frac{41}{10} - [ \frac{5}{2} - \{ \frac{5}{6} - \frac{13}{30} \}] \\ = \frac{41}{10} - [ \frac{5}{2} - \frac{5 \times 5 - 13}{30} ]\\ = \frac{41}{10} - [ \frac{5}{2} - \frac{25 - 23}{30} ]\\ = \frac{41}{10} - [ \frac{5}{2} - \frac{12}{30} \\ = \frac{41}{10} - [ \frac{5}{2} - \frac{2}{5} ] \\ = \frac{41}{10} - [ \frac{5 \times 5 - 2 \times 2}{10} ] \\ = \frac{41}{10} - \frac{25 - 4}{10} \\ = \frac{41 - 21}{10} \\ = \frac{20}{10} \\ \color{lime}= 2$

Answer 2

Answer:

2 Ans.

Step-by-step explanation:

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