Question

Subtract $21kg370g$ from $37kg675g$ without conversion into gram.

• A. $15kg305g$
• B. $15kg470g$
• C. $16kg305g$
• D. $16kg300g$

Answer 1

Answer: (C)

$16kg305g$

Let $B=$ $37$ $kg$ $675$ $gm$

$A=$ $21$ $kg$ $370$ $gm$

(i) Subtract $21$ $kg$ $370$ $gm$ from $37$ $kg$ $675$ $gm$

$21$ $kg$ $370$ $gm$ $=21kg+370gm$ $=A$ ...................(1)

$37$ $kg$ $675$ $gm$ $=37kg+675gm$ $=B$ ...................(2)

Now as per the question we have to subtract A from B

$B-A=[37$ $kg$ $+$ $675$ $gm$] $-$ [$21$ $kg$ $+$ $370$ $gm$]

$B-A=[37$ $kg$ $-$ $21$ $kg$] $+$ [$675$ $gm$ $-$ $370$ $gm$]

$B-A=16$ $kg$ $+$ $305$ $gm$

$16$ $kg$ $305$ $gm$ is the answer.