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A two-digit number is such that the p...

A two-digit number is such that the product of its digits is 16. When 54 is subtracted from the number, the digits are interchanged. Find the number.

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RD SHARMA-QUADRATIC EQUATIONS-All Questions
  1. A two-digit number is such that the product of its digits is 8. Whe...

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  2. A two-digit number is such that the product of the digits is 12. Wh...

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  3. A two-digit number is such that the product of its digits is 16. Wh...

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  4. A two digit number is 4 times the sum of its digits and twice the p...

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  5. The difference of squares of two numbers is 180. The square of the ...

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  6. Find two consecutive odd positive integers, sum of whose squares is...

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  7. The difference of two natural numbers is 3 and the difference of th...

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  8. The sum of the squares of two consecutive odd numbers is 394. Find ...

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  9. The sum of the squares of two consecutive even numbers is 340. Find...

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  10. A train travels a distance of 300 km at constant speed. If the spee...

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  11. The speed of a boat in still water is 15 km/hr. It can go 30 km ups...

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  12. A fast train takes 3 hours less than a slow train for a journey of 900...

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  13. A plane left 30 minutes late than its scheduled time and in order to r...

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  14. In a flight of 600 km, an aircraft was slowed down due to bad weath...

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  15. Two trains leave a railway station at the same time. The first train t...

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  16. A passenger train takes one hour less for a journey of 150 km if it...

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  17. The time taken by a person to cover 150 km was 2.5 hrs more than th...

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  18. An aeroplane takes 1 hour less for a journey of 1200 km if its spee...

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  19. A passenger train takes 2 hours less for a journey of 300 km if its...

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  20. A train covers a distance of 90 km at a uniform speed. Had the spee...

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