Math, asked by amitrshah303, 9 months ago

એક ટ્રેન એકધારી ઝડપે 360 કિમી અંતર કાપે છે. જો તેની ઝડપ 5 દિપી kalak વધુ હોય તો
આટલું જ અંતર કાપતાં તેને 1 કલાક ઓછો સમય લાગે છે તો તેનની ઝડપ શોધો​

Answers

Answered by kasim2001
1

Answer:

360in 5

1=?

360/5*1=72

Answered by steffis
5

At 40 km/hr train will take less than 1 hour to cover the same distance.

Step 1: Find the speed of the train.

Given-  Distance = 360 km

Let the speed of the train be x km/hr.

Speed when increased by 5 km/hr = (x+5) km/hr

\frac{360}{x} - \frac{360}{x+5}  = 1

\frac{360x+1800-360x}{x(x+5)} = 1

 x^{2} +5x-1800=0

x^{2} +45x-40x-1800=0

x(x+45)-40(x+45)=0

(x-40)(x+45)=0

x= 40 or -45

Speed can't be negative so, the speed of the train is 40 km/hr.

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