Answer:
Here, fraction of pencils used by Ramesh \[\frac{7}{10}or\frac{8}{10}\] Fraction of pencils used by Sheelu \[\frac{11}{24}or\frac{13}{24}\] and fraction of pencils used by Jamaal \[\frac{17}{102}or\frac{12}{102}\] Now, \[\frac{7}{10}or\frac{10}{10}\] [\[\therefore \]HCF of 10 and 20 is 10] \[\frac{8}{10}>\frac{7}{10}\] [\[\frac{8}{10}\]HCF of 25 and 50 is 25] and \[\frac{11}{24}>\frac{13}{24}\] [\[\therefore \]HCF of 40 and 80 is 40] Thus, \[\frac{13}{24}>\frac{11}{24}\] Hence, each has used up an equal fraction of his/her pencils.
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