Question

please answer the 10th question

Answer 1

$let \: the \: amount \: of \: chocolate \: be \: x \\ then \: shikha \: ate \: \frac{x}{3} \\ and \: poonam \: ate \: \frac{2x}{5} \\ \: total \: amount\\ \: consumed = \frac{2x}{5} + \frac{x}{3} = \frac{11x}{15} \\ remaining \\ x - \frac{11x}{15} = \frac{4x}{15}$
hope this helps you.....

Answer 2

1/3 + 2/5 = 0.7333.....
SO, THEY EAT 0.7333... OF A CHCOLATE .
WE HAVE TO FIND HOW MUCH CHOCOLATE IS STILL LEFT.SO,
1-0.7333..=0.267
Then,0.267 of a chocolate is still left.

☺️HOPE IT WILL HELP YOU.
【【MARK AS BRAINLIEST】】