Question

13.Recent polls indicate that only 15% of those registered to vote in an upcoming election is in the age group 18 to 25. A voter registration drive wants to raise this figure to 20% before the day of

the election, so it begins to target this demographic exclusively, if there are currently 51000 registered voters in the district, and assuming all new registrations are in the target demographic, approximately how many new voters does the drive need to register to meet its goal?
(A)2600
(B)3200
(C)6800
(D)10200

Answer 1

If you do that math, 10,200 is 20% of 51000 so now you subtract 18% of it to find what the number needed to reach the goal is. If you find 18% of 51000 you get 918. So if you do the math by subtracting 918 from 10,200 you get 9282. Although this is not an answer this is the correct answer as I believe they either meant to ask what they needed total but did not. IN THE END THE ANSWER IS D. 10200

Answer 2

Answer: (A) 2600

Explanation:

First we need to find what 15% and 20% of 51000

51000 x 0.15 = 7650 so 15% of 51000 is 7650

51000 x 0.2 = 10200 so 20% of 51000 is 10200

Now we need to find the difference between the two precentages

10200-7650=2550

Round 2550 to 2 significant figures is 2600

So the answer is A