Example 5 (Page 10) - Chapter 1 Class 8 - Fractions in Disguise (Ganita Prakash II)

Transcript

Example 5 (Page 10) A cyclist cycles from Delhi to Agra and completes 40% of the journey. If he has covered 92 km, how many more kilometres does he have to travel to reach Agra? Let’s try making a bar diagram of this So, we know that 40% of Total = 92 km And, we need to find how many more kilometres does he have to travel to reach Agra Thus, we need to find 60% of total Now, to find 60% of Total, we use the 40% of total value We can write 40% of total = 2 × 20% of total And, 60% of total = 3 × 20% of total Finding 20% of total Given that 40% of total = 92km 40% × Total = 92 km 2 × 20% × Total = 92 km 20% × Total = 92/2 km 20% × Total = 46 km 20% of total = 46 km Finding 60% of total Now, 60% of total = 3 × 20% of total = 3 × 46 km = 138 km Thus, the cyclist has 138 km left to go.