Click to Chat

1800-1023-196

+91-120-4616500

CART 0

• 0

MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
`        Two cars start together 'm' the same direction from the same place. The first goes with uniform speed 10km/h. The second goes at a speed of 8km/h m the first hour and increases the speed by 1/2km m each succeeding hour .After how many hours will the second car overtake the first car if both cars goes non stop.`
one year ago

Arun
23013 Points
```							Dear KushalLet the second car overtakes the first car after n hours.HenceDistance covered by first car = distance covered by second car10n = 8 + (8 +1/2) + (8 + 2/2) + (8+3/2) + .......+(8 + n-1/2)10 n = 8n + 1/2 [1 +2 +3 + 4+.......(n-1)]2n = (1/2)[n(n-1)/2]4n = n(n-1)/28 n = n² - nn² - 9n = 0n = 9Hence answer is 9 hoursRegardsArun (askIITians forum expert)
```
one year ago
Think You Can Provide A Better Answer ?

## Other Related Questions on Algebra

View all Questions »

### Course Features

• 731 Video Lectures
• Revision Notes
• Previous Year Papers
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Test paper with Video Solution

### Course Features

• 101 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions