Question

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Answer 1

Answer:

The number is 31.

Step-by-step explanation:

Let the unit digit be x.

So, the ten's digit will be 3x.

⇒ The number will be 10(3x) + x = 30x + x = 31x

Also, the sum of number and the unit digit is 32.

⇒ 31x + x = 32

⇒ 32x = 32

⇒ x = 32/32 = 1

⇒ The number is 31x = 31×1 = 31.

Answer 2

Answer:

Answer-;

How do you find the prime numbers between 100 and 200?

The number of prime numbers from 100 to 200 is 21. 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199.

Step-by-step explanation:

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