Soham received 40 messages on his birthday. Of these, 90% were birthday greetings. How many other messages did he get besides the greetings?

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Solution

The correct option is A 4
Total number of messages = 40
Since 90% of them were greetings.
Therefore, left 10% of messages were other than the greetings.
So, 10% of 40
$\Rightarrow 40 \times \frac{10}{100}$
$\Rightarrow 4 messages$
Hence, 4 other messages were other than the greetings.

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Soham received 40 messages on his birthday. Of these, 90% were birthday greetings. How many other messages did he get besides the greetings?

The correct option is A 4Total number of messages = 40 Since 90% of them were greetings. Therefore, left 10% of messages were other than the greetings. So, 10% of 40 ⇒40×10100 ⇒4 messages Hence, 4 other messages were other than the greetings.

The correct option is A 4
Total number of messages = 40
Since 90% of them were greetings.
Therefore, left 10% of messages were other than the greetings.
So, 10% of 40
$\Rightarrow 40 \times \frac{10}{100}$
$\Rightarrow 4 messages$
Hence, 4 other messages were other than the greetings.