Question

please answer this questions​

Answer 1

Answer:

1. HCF = 11

LCM = 7700

One no. = 275

So, other number = 11 x 7700/275 = 308 (B)

2. 1 divides every natural number, but even 0 does that. So, the ideal answer should be both B and C. But I'd rather you write only B to be safe. (B)

3. 2 and 3 will divide something which 6 divides. (C)

4. 1 is neither prime nor composite. (C)

5. 54315 has to be divisible by both 3 and 5 to be divisible by 15. (C)

6. 17 and 19 are clearly a pair of primes having a difference of 2. So, they're twin primes. (B)

Answer 2

Answer:

Q.1 option B , Q.2 option B , Q.3 option C , Q.4 option C , Q.5 option C , Q.6 option B

Step-by-step explanation:

Q.1 LCM * HCF = PRODUCT OF THE TWO NUMBERS .

11 * 7700 = 275*unknown no.

Q.2 Always 1 is a factor of every natural number.

Q.3 Since , 2*3=6

So , any no divisible by both 2 and 3 both is also divisible by 6

Q.4 1 is neither a prime nor a composite number . It is rather known as a SPECIAL NUMBER.

Q.5 Since , 3*5= 15

So , any no divisible by both 5 and 3 both is also divisible by 15.

Q.6 The prime numbers differing by 2 are called twin primes.