You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.

Question: A car during its journey travels 30 minutes at a speed of 60 kmph, another 45 minutes at a speed of 80 kmph, and 1 hours at a speed of 70 kmph.The average speed of the car is

 Option A: 63.07 kmph

 Option B: 64 kmph

 Option C: 75 kmph

 Option D: 80 kmph

 Option E: None of these
Option D

Question: Today Joelle opened an interest-bearing savings account and deposited $5,000. If the annual interest rate is 5 percent compounded interest, and she neither deposits nor withdraws money for exactly 2 years, how much money will she have in the account?

 Option A: $6512.50

 Option B: $7512.50

 Option C: $5512.50

 Option D: $4512.50

 Option E: $5250.00
Option C

Question: How long does a train 165 meters long running at the rate of 90 kmph take to cross a bridge 660 meters in length?

 Option A: 33

 Option B: 72

 Option C: 55

 Option D: 82

 Option E: 62

Option A