Question

please help me answer both please........ it's urgent​

Answer 1

Answer:

answer for the given problem is given

Answer 2

5.

HCF of two no. = 21

LCM of two no. = 84

Ratio " " ". = 1:4

Let A be X

and B be 4x

LCM × HCF =A× B

$84 \times 21 = x \times 4x \\ 1764 = {4x}^{2} \\ \frac{1764}{4} = {x}^{2} \\ \\ 441 = {x}^{2} \\ \sqrt{441} = x \\ 21 = x$

So, the larger no. is 4x = 4×21 = 84

6. Answer is in the above attachment