Skip to content
Philoid
Browse Saved
Back to chapter
Mathematics
4. Linear Equations in two Variables
Home · Class 9 · Mathematics · Ref. Book · 4. Linear Equations in two Variables
Prev
Next
Q19 of 54 Page 77

Two years later a father will be 8 yrs more than three times the age of the son. Taking the present age of father and son as x and y respectively. Write a linear equation for the above.

Let father’s present age be x and son’s present age be y.

After two years


Son’s age = y + 2


Father’s age = x + 2


According to question


x + 2 = 8 + 3 (y + 2)


x + 2 = 8 + 3y + 6


x + 2 = 14 + 3y


x – 3y = 12


Equation is x – 3y = 12


More from this chapter

All 54 →
17

A man travels 370 km partly by train and partly by car. If he covers 250 km by train and the rest by car it takes him 4 hours but if he travels 130km by train and the rest by the car he takes 18 min. longer. Find the speed of the train and car.

18

Three times the smallest of three consecutive odd number decreased by 7 equal twice the largest one. Find the number.

20

A farmer counts nine heads and 24 legs of Chickens and cows. How many has each of these Chickens and cows?

21

A man has only 20 paisa coins and 25 paisa coins in his purse. If he has 50 coins in all totaling rupees 11.25 how many coins of each does he have?

Questions · 54
4. Linear Equations in two Variables
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved