Quantities and Units

Q1: Adding 27.5 × 103 to 8.9 × 104 equals

A 36.4 × 107

B 116.5 × 104

C 28.39 × 103

D 1.165 × 105

ANS:D - 1.165 × 105

27.5*10^3+8.9*10^4=27.5*10^3+89*10^3
=(27.5+89)10^3
=116*10^3
=1.17*10^5
Approximately equal 1.165*10^5



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