1.

The sum of radii of two spheres is 10 cm and the sum of their volume is 880 cm3. What will be the product of their radii ?

A. 21
B.
C. <table><tr><td rowspan="2">26</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2"></td></tr><tr><td style="text-align: center;">3</td></tr></table>
D. <table><tr><td rowspan="2">33</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2"></td></tr><tr><td style="text-align: center;">3</td></tr></table>
E. 70
Answer» C. <table><tr><td rowspan="2">26</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2"></td></tr><tr><td style="text-align: center;">3</td></tr></table>


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