A) 37
B) 32
C) 23
D) 73
Correct Answer: A
Solution :
[a] Let the number be x. |
Then, 100% of \[320+x=30%\] of 230 |
\[\frac{10\times 320}{100}+x=\frac{30\times 230}{100}\] |
\[32+x=69\] |
\[x=69-32=37\] |
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