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Aaishi Sarawagi from Bombay Scottish School Mahim , Mumbai
Subject :IMO    Class : Class 8

What is the ratio of Milky Way radius to our solar system radius given that, our solar system radius is 5.9 × 1012 metres and the Milky Way disk radius is 3.9 × 1020 meters? Round off coefficient to the nearest tenth.

A0.66 × 107
B6.6 × 107
C6.6 × 108
D0.61 × 107


Ans 1:

Riddhima Singh from Sherwood High, Bangalore
Class : Class 8
0.66 x 10 to the power 8= 6.6 x 10 to the power 7

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