please solve the problems....
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1) 145 will be cost of 15 books
2)40 km in 10minutes
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Ans. 1 - cost of 20 books = ₹180
= cost of 1 book = ₹180/20 = ₹9
= cost of 15 books = 15x9 =₹ 135
Ans. 2 - speed of train = 100km/hr
time = 20 mins = 60 mins = 1 hr
= 20 mins = 20/60hr
= 1/3 hrs
= distance = speed x time
= distance = 100 x 1/3km
= distance = 33.33km
I hope this is right answer !!!
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