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deepaksoni
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An aeroplane travelled a distance of 400 km at an average speed of x km/hr. On the return journey, the speed was increased by 40 km/hr. Write down an expression for the time taken for (i)the onward journey, (ii) the return journey. If the return journey took 30 minutes less than the onward journey, write down an equation in x and find its value

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This question has been taken from Book:- ML aggarwal, Avichal publication, class10th, quadratic equation in one variable, chapter 5, exercise 5.5
This is an important ques and asked in 2002

An aeroplane travelled a distance of 400 km at an average speed of x km/hr.

On the return journey, the speed was increased by 40 km/hr.

Write down an expression for the time taken for

(i)the onward journey,

(ii) the return journey.

If the return journey took 30 minutes less than the onward journey, write down an equation in x and find its value
Question no28. , ML Aggarwal, chapter 5, exercise 5.5, quadratic equation in one variable, ICSE board,

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