Question 81 of 90intermediate🔧 ApplyNumerical2 marks

After refueling, Sam found his fuel gauge reading 9 l. How much fuel did his bike have before refueling?

Correct Answer

Given: After refueling = 9 l Petrol added = 5 l 300 ml

Formula: Fuel before refueling = After refueling - Petrol added

Substitution: Fuel before refueling = 9 l - 5 l 300 ml

Calculation: Convert to ml: 9 l = 9,000 ml Convert to ml: 5 l 300 ml = 5,300 ml 9,000 ml - 5,300 ml = 3,700 ml 3,700 ml = 3 l 700 ml

Answer: Sam's bike had 3 l 700 ml of fuel before refueling.

Exercise: Let Us Compare | Q: 87 | (Page Page 14)
For More Understanding

Explanation

The chapter explains subtraction of capacities. After refueling, Sam's bike has 9 l of fuel. Sam added 5 l 300 ml of petrol. Fuel before refueling = 9 l - 5 l 300 ml. Convert: 9 l = 9,000 ml, 5 l 300 ml = 5,300 ml. Subtract: 9,000 ml - 5,300 ml = 3,700 ml = 3 l 700 ml.

Solution Steps

  1. Convert 9 l to 9,000 ml

  2. Convert 5 l 300 ml to 5,300 ml

  3. Subtract: 9,000 ml - 5,300 ml = 3,700 ml

  4. Convert 3,700 ml to 3 l 700 ml

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