i don't get this: why is the answer to this 36 and not 35?

Question

choose the best approx for (5 + 7/11) * (6 + 17/110)

a. 30

b. 35

c. 36

d. 42

Answer 1

(5 + 7/11) * (6 + 17/110) is equal to 34.689 using a calculator which is approximately 35 to the units place by rounding up.

Answer 2

Let's ignore 17/110 it's a small number. 7/11 is more than half of unit between two whole numbers. Now let's rewrite original expression as (5 + 7/11)*6 we will get 30 plus (a little more than half of 6 which is) ~4, we will get ~34 close to 35 . So the answer is (b) 35 .