MEDIUM
10th CBSE
IMPORTANT
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A number consists of two digits whose product is 15. When 18 is subtracted from the number, the digits interchange their places. Find the number.

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Important Questions on Quadratic Equations

HARD
10th CBSE
IMPORTANT
New Mathematics for Class X>Chapter 4 - Quadratic Equations>EXERCISE>Q 8
A number consists of two digits whose product is 30. If units digit is subtracted from tens digit, 1 is obtained. Find the number.
MEDIUM
10th CBSE
IMPORTANT
New Mathematics for Class X>Chapter 4 - Quadratic Equations>EXERCISE>Q 9
The numerator of a fraction is one more than its denominator. If its reciprocal is subtracted from it, the difference is 1130. Find the fraction.
MEDIUM
10th CBSE
IMPORTANT
New Mathematics for Class X>Chapter 4 - Quadratic Equations>EXERCISE>Q 10
The numerator of a fraction is 3 more than its denominator. If its reciprocal is subtracted from it, the difference is 3328. Find the fraction.
HARD
10th CBSE
IMPORTANT
New Mathematics for Class X>Chapter 4 - Quadratic Equations>EXERCISE>Q 11
The denominator of a fraction exceeds its numerator by 3. If 3 is added to both numerator and denominator, the difference between the new and the original fraction is 988. Find the original fraction.
HARD
10th CBSE
IMPORTANT
New Mathematics for Class X>Chapter 4 - Quadratic Equations>EXERCISE>Q 12
The sum of the ages (in years) of a son and his father is 35 and the product of their ages is 150 Find their ages.
HARD
10th CBSE
IMPORTANT
New Mathematics for Class X>Chapter 4 - Quadratic Equations>EXERCISE>Q 13
If a boy's age and his father's age amount together to 24 years. Fourth part of the product of their ages exceeds the boy's age by 9 years. Find how old they are?
HARD
10th CBSE
IMPORTANT
New Mathematics for Class X>Chapter 4 - Quadratic Equations>EXERCISE>Q 14
The difference of mother's age and her daughter's age is 21 years and the twelfth part of the product of their ages is less than the mother's age by 18 years. Find their ages.
HARD
10th CBSE
IMPORTANT
New Mathematics for Class X>Chapter 4 - Quadratic Equations>EXERCISE>Q 15
The product of Shikha's age five years ago and her age 8 years later, is 30. Her age at both times being given in years. Find her present age.