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The sum of a number and its reciproca...

The sum of a number and its reciprocal is `17//4` . Find the number.

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Fill in the blanks : The product of two positive rational number is always .. The product of a positive rational number and a negative rational number is always .... The product of two negative rational numbers is always ...... The reciprocal of a positive rational number is ...... The reciprocal of a negative rational number is ...... Zero has .... reciprocal The product of rational number and its reciprocal is ....... The numbers.... and .... are their own reciprocal If a is reciprocal of b, then the reciprocal of b is .... The number 0 is .... the reciprocal of any number. Reciprocal of 1/a , a\ !=0\ i s ddot (17 x 12)^(-1)=17^(-1)x

Fill in the blanks : (i) The product of two positive rational numbers is always……………...(ii) The product of two negative rational numbers is always …………… (iii) If two rational numbers have opposite signs then their product is always ………….. (iv) The reciprocal of a positive rational number is ………. and the reciprocal of a negative raitonal number is …………… (v) Rational number 0 has ………….. reciprocal. (vi) The product of a rational number and its reciprocal is ……….. (vii) The numbers ……….. and ……….. are their own reciprocals. (viii) If m is reciprocal of n, then the reciprocal of n is …………

The sum of two numbers is 18. The sum of their reciprocals is ¼. Find the numbers.

RD SHARMA ENGLISH-QUADRATIC EQUATIONS-All Questions
  1. Find two natural numbers which differ by 3 and whose squares have t...

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  2. Determine two consecutive multiples of 3 whose product is 270.

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  3. The sum of a number and its reciprocal is 17//4 . Find the number.

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  4. A two-digit number is such that the product of its digits is 8. Whe...

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

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

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

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

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

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

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

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

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

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

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  15. A fast train takes 3 hours less than a slow train for a journey of 600...

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

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

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

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

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

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