Biomolecules

A linear octasaccharide (molar mass =1024gmol−1 ) on complete hydrolysis produces three monosaccharides: ribose, 2-deoxyribose and glucose. The amount of 2-deoxyribose formed is 58.26%(w∕w) of the total amount of the monosaccharides produced in the hydrolyzed products. The number of ribose unit(s) present in one molecule of octasaccharide is ____
Use: Molar mass (in gmol−1 ): ribose = 150, 2-deoxyribose = 134, glucose = 180; Atomic mass (in amu): H=1,O=16