CBSE Class 10 Answered
please help me solving this
Asked by deepakdorik | 02 Oct, 2009, 10:33: PM
Expert Answer
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The end to end length is 5 cm, so the length of cylindrical portion is 5 - 2.8 = 2.2 cm.
Volume of one Gulab jamun = Volume of cylindrical portion + Volume of 2 hemispherical ends.
Volume of one Gulab jamun = Volume of cylindrical portion + Volume a sphere.
= πDL + πD3/6 = (22/7)(2.8)(2.2) + (22/7)(2.8)3/6 = 19.36 + 11.5 = 30.86 cm3
The sugar syrup in one Gulab jamun = (0.30)(30.86) cm3
The sugar syrup in 45 Gulab jamun = (45)(0.30)(30.86) = 416 cm3
The answer at the end of the CBSE Class X book is 338 cm3 and is incorrect.
Regards,
Team,
TopperLearning.
Answered by | 03 Oct, 2009, 01:07: PM
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