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Solve the following problems : (i) The...

Solve the following problems `:`
(i) The sume of a natural number and its reciprocal is `( 50)/( 7)` . Find the number.
(ii) In a two-digit , the digit at the units place is equal to the square of the digit at tens place. If 18 is added to the number, the digits get interchanged. Find the number.
(iii) If the speed of a car is decreased by 8 km `//` h , it takes 1 hour more to cover a distance of 240 km. Find the original speed of the car.

Text Solution

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(i) The number is 7 (ii) The number is 24 (iii) The original speed of the car `: ` 48 km `//` h
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