Ex 11.1, 10 - Chapter 11 Class 8 Direct and Inverse Proportions

Transcript

Ex 11.1, 10 A loaded truck travels 14 km in 25 minutes. If the speed remains the same, how far can it travel in 5 hours?Given, truck travels 14 km in 25 minutes. We need to find how far can it travel in 5 hours Converting 5 hours into minutes 5 hours = 5 × 60 minutes = 300 minutes Let truck travel x km in 300 minutes Thus, our table looks like Now, As distance increases, the time taken to travel also increases ∴ Distance and time are in direct proportion. 𝟏𝟒/𝟐𝟓 = 𝒙/𝟑𝟎𝟎 14/25 × 300 = 𝑥 14 × 12 = 𝑥 168 = 𝑥 𝒙 = 𝟏𝟔𝟖 ∴ Truck can travel 168 km in 5 hours.