Question

QUESTION NO. 53 SOLVE FAST

Answer 1

Answer:

57

Step-by-step explanation:

Given a : b = b : 256.

We know that Product of extremes = Product of means.

=>  256a = b²   ---- (i)

It is given that a:b = 3:16.

⇒ a/b = 3/16

⇒ 16a = 3b

⇒ 16a/3 = b    ----- (ii)

Substitute (ii) in (i) we get

⇒ 256a = b²

⇒ 256a = (16a/3)²

⇒ 256a = (256a²/9)

⇒ a = 9

Substitute a = 9 in (ii), we get

⇒ 16a/3 = b

⇒ 16 * 9/3 = b

⇒ b = 48.

Now,

∴ a + b = 9 + 48 = 57.

Hope it helps!

Answer 2

Step-by-step explanation:

ok here is the answer that I think

this might be correct.

3:16 scaled down will be 1:8 so 1+8=9