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Simple equations level 2

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Simple equations level 2

  1. 1. SIMPLE EQUATIONS LEVEL 2 C.S.VEERARAGAVAN
  2. 2. Numbers Twice a number is 12 more than half the number. What is the number? 1) 7 2) 6 3) 8 4) 9 2x = 12 + x 2 4x = 24 + x 3x = 24 X = 8 I 12-06-2015VEERARAGAVAN C S veeraa1729@gmail.com 9894834264 2
  3. 3. Ages Three years ago, Anurag’s age was thrice that of Bhragav. Two years hence Anurag’s age will be twice that of Bharagav. What is the present age of Anurag? 1) 16 2) 18 3) 20 4) 22 x – 3 = 3(y – 3) (1) (x + 2 ) = 2(y + 2) (2) x – 3y = – 6 x – 2y = 2 Hence – y = – 8  y = 8. X = 18. II 12-06-2015VEERARAGAVAN C S veeraa1729@gmail.com 9894834264 3
  4. 4. Ages Goutam is four times as old as Girija. Four years hence, the age of Goutam will be thrice that of Girija. What is the present age of Goutam? 1) 20 2) 24 3) 28 4) 32 x = 4y (1) x + 4 = 3 ( y + 4) (2) Using (1) in (2) 4y + 4 = 3y + 12 Y = 8 Hence x = 32 III 12-06-2015VEERARAGAVAN C S veeraa1729@gmail.com 9894834264 4
  5. 5. ALGEBRA 2 Pencils and 3 pens cost Rs.8 2 Pens and 3 pencils cost Rs.7 What is the cost of 5 pencils and 5 pens? 1) 15 2) 12.50 3) 17.50 4) 20 2x + 3y = 8 3x + 2y = 7 Hence 5x + 5y = 15. IV 12-06-2015VEERARAGAVAN C S veeraa1729@gmail.com 9894834264 5
  6. 6. AGES Rajani’s age is 9 years more than half of her age. What is Rajani’s age? 1) 18 2) 20 3) 22 4) 24 x = 9 + x 2 2x = 18 + x x = 18. V 12-06-2015VEERARAGAVAN C S veeraa1729@gmail.com 9894834264 6
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