The mass of a box measured by a grocer’s balane is $$2.3$$ kg. Two gold pieces of masses $$20.15$$ g and $$20.17$$ g are added to the box. The total mass of the box is

Question

Infinity Learn · Accepted Answer

Here, mass of the box, m $$=$$ $$2.3$$ kgMass of one gold piece, $$m1$$ $$=$$ $$20.15g$$ $$=$$ $$0.02015kgMass$$ of other gold piece, $$m2$$ $$=$$ $$20.17g$$ $$=$$ $$0.02017kg$$ ∴Total mass $$=$$ m $$+$$ $$m1+m2=$$ $$2.3$$ $$kg+$$ $$0.02015$$ kg $$+0.02017$$ $$kg=$$ $$2.34032$$ kgAs the result is correct only up to one place of decimal, therefore, on rounding off, we getTotal mass $$=$$ $$2.3$$ kg

The mass of a box measured by a grocer’s balane is 2.3 kg. Two gold pieces of masses 20.15 g and 20.17 g are added to the box. The total mass of the box is

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