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Age problems (for practice) | class 10 mathematics | advguruji | Physics Advocate

Linear Equations Q1. Ten years ago, father was twelve times as old as his son and ten years hence, he will be twice as old as his son will be. Find their present ages. Ans. Present age of father = 34 years          Present age of son = 12 years Q2. Three years ago, Priya's mother was six times older than her. Four years from now, Priya's mother will be one year older than thrice her age. Find the present age of Priya and her mother. Ans.  Present age of Priya = 8 years       Present age of mother = 33 years Q3. Five years ago, Rakesh was five times younger than his mother. Ten years from now, his age will be half of his mother's age. Find the present age of Rakesh and his mother. Ans. Present age of Rakesh = 10 years      Present age of mother = 30 years Q4.           (equation in one variable) A  is elder to  B  by two years. A's father  F  is twice as old as  A .  B  is twice as old as his sister  S . If the ages of the father and sister differ by 40 years,  find th

Fraction based applied problems | Linear equations | class 10 | advguruji | Physics Advocate

Q1. A fraction is such that if the numerator is multiplied by 3 and the denominator is reduced by 3, we get 18/11, but if the numerator is increased by 8 and the denominator is doubled, we get 2/5. Find the fraction. Ans.   12/25 Q2. The numerator of a fraction is 4 less than the denominator. If the numerator is decreased by 2 and denominator is increased by 1, then the denominator is eight times the numerator. Find the fraction. Ans.  3/7 Q3. A fraction becomes 1/3 if 1 is subtracted from both its numerator and denominator. If 1 is added to both the numerator and denominator, it becomes 1/2. Find the fraction. Ans.  3/7 BEST OF LUCK.. to my dear students.. by           www.advguruji.blogspot.com

homework on applied problems | linear equations in two variables | advguruji

Q1. The sum of two digit number and the number obtained by reversing the order of its digits is 121, and the two digits differ by 3. Find the number. Answer.    47 or 74 Q2. The sum of the digits of a two digit number is 9. Also, nine times this number is twice the number obtained by reversing the order of the digits. Find the number. Answer.    18 Q3. When a two digit number and its reverse order digit number are added, the result is 99. The tens digit of the number is greater to the ones digit by 5. Find the number. Answer.  72 LOVELY STUDENTS... PLEASE COMMENT IF YOU HAVE ANY DOUBT               by    www.advguruji.blogspot.com