Town A and Town B are 240 km apart. Anna started travelling from Town A at the same time. Chantal moved from town B. Chantal was moving at speed of 50km/hr. They met after 3 hours. Find Anna's speed?

Let Anna's speed be x km/hr.

Since they met after 3 hours, the total distance covered by Anna and Chantal is 240 km.

Distance covered by Anna = 3x km
Distance covered by Chantal = 50 * 3 = 150 km

Total distance = Distance covered by Anna + Distance covered by Chantal
240 = 3x + 150
240 - 150 = 3x
90 = 3x
x = 30

Therefore, Anna's speed is 30 km/hr.

Step 1: Calculate the total distance covered by Chantal in 3 hours.

Distance = speed × time
Distance covered by Chantal = 50 km/hr × 3 hr = 150 km

Step 2: Calculate the distance covered by Anna in 3 hours.

Let Anna's speed be x km/hr.
Distance covered by Anna = x km/hr × 3 hr = 3x km

Step 3: Determine the total distance Anna covered.

Anna started from Town A and met Chantal halfway.
Total distance covered by Anna = 120 km (half of 240 km)

Step 4: Set up an equation to find Anna's speed.

Total distance covered by Anna = Distance covered by Anna in 3 hours
120 km = 3x km

Step 5: Solve for Anna's speed.

Dividing both sides of the equation by 3:
x km/hr = 40 km/hr

Therefore, Anna's speed is 40 km/hr.