# GMAT Quant Practice | GMAT Rates Q6

#### Average Speed | Time Speed Distance | GMAT Sample Questions

This GMAT quant practice question is from rates - speed, distance, and time. The concept tested is to compute the average speed of travel. An easy, GMAT 550 level, quantitative reasoning sample question.

Question 6: Steve traveled the first 2 hours of his journey at 40 mph and the remaining 3 hours of his journey at 80 mph. What is his average speed for the entire journey?

1. 60 mph
2. 56.67 mph
3. 53.33 mph
4. 64 mph
5. 66.67 mph

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### Explanatory Answer | GMAT Average Speed

#### Step 1: Compute Total Distance Travelled

Average speed of travel = $$frac{\text{Total distance travelled}}{\text{Total time taken}}$ Total distance traveled by Steve = Distance covered in the first 2 hours + distance covered in the next 3 hours. Distance covered in the first 2 hours = speed × time = 40 × 2 = 80 miles. Distance covered in the next 3 hours = speed × time = 80 × 3 = 240 miles. Therefore, total distance covered = 80 + 240 = 320 miles. #### Step 2: Compute Average Speed Total time taken = 2 + 3 = 5 hours. Total distance travelled = 320 miles. Hence, average speed = $\frac{\text{Total distance travelled}}{\text{Total time taken}} = \frac{320}{5}$ = 64 miles per hour. #### Choice D is the correct answer. #### GMAT Online CourseTry it free! Register in 2 easy steps and Start learning in 5 minutes! #### Already have an Account? #### GMAT Live Online Classes Next Batch Sep 14, 2021 #### GMAT Coaching in Chennai Next Batch after Lockdown #### GMAT Coaching in Chennai Sign up for a Free Demo of our GMAT Classes in Chennai ##### Where is Wizako located? Wizako - GMAT, GRE, SAT Prep An Ascent Education Initiative 14B/1 Dr Thirumurthy Nagar 1st Street Nungambakkam Chennai 600 034. India ##### How to reach Wizako? Phone:$91) 44 4500 8484
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