Question
(a) You are going on a road trip over a distance of 3000 kilometres with three friends. The car consumes 6 litres of gas per 100 kilometres and gas costs Rs1.20 per litre. If you want to split the cost of gas evenly between the four of you, how much should each of you contribute?
(b) Find 8 rational numbers between −13 and 69.
[4 MARKS]
(b) Find 8 rational numbers between −13 and 69.
[4 MARKS]
Answer:
:
Each part: 2 Marks
(a) Distance of trip = 3000km
Rate at which car consumes gas = 6 litres per 100 km
Total amount of gas consumed in the trip =6100×3000km=180litres
Cost of gas = 1.20 Rs per litre.
Total cost = 1.20 × 180 = 216 Rs
∴ Contribution from each =2164=Rs54
(b) Upper limit =69
Lower limit =−13 or−39
Rational numbers between these are:
−29,−19,0,19,29,39,49,59
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:
Each part: 2 Marks
(a) Distance of trip = 3000km
Rate at which car consumes gas = 6 litres per 100 km
Total amount of gas consumed in the trip =6100×3000km=180litres
Cost of gas = 1.20 Rs per litre.
Total cost = 1.20 × 180 = 216 Rs
∴ Contribution from each =2164=Rs54
(b) Upper limit =69
Lower limit =−13 or−39
Rational numbers between these are:
−29,−19,0,19,29,39,49,59
Was this answer helpful ?
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