Question

Answer me Q 8 and Q7​

Answer 1

Answer:

No.

Step-by-step explanation:

This can't be the LCM and HCF of the same number as because there's a rule that if there is the HCF and LCM of a given number then the LCM would be completely divided by the HCF and (the quotient should be a natural number).

so it can't happen.

Answer 2

(7) 3×5×7+7=105+7=112.

112 is an even number and is therefore a composite number.

Also, 112 is divisible by other numbers such as 2,4,7,8,14,16,28 and 56 apart from itself 112 and 1.

(8) Since HCF is 18 numbers can be assumed as 18x and 18y.

⇒380=2×5×2×19

⇒380 is not divisible by 18 itself hence HCF 18 and LCM as 380 is not possible.