1.

The correct answer upto proper number of significant digits : (2.50 x 10^(-2) km) + (3.7 xx 10^2 cm)is :

Answer»

6.20 KM
28.7 m
49.50 CM
cannot be calculated

Solution :`(2.50 XX 10^(-2) km)+ (3.7 xx 10^2 cm)`
`(25.0 m) + (3.7 m) = 28.7 m `


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