Question

1- The sum of three consecutive even natural numbers is 48. Find the numbers.
2- The sum of three consecutive odd natural numbers is 69. Find the numbers.
3- The sum of three consecutive numbers is 156. Find the number which is multiple of 13 of these numbers
4- Divide 54 into two parts such as one part is 2/7 of the other.
5- Two equal sides of triangle than are each 4m less than three times the third side. Find the dimensions of the triangle, if the perimeter of 55m.
6- After 12 years, Rohit shall be three times sa old as he was 4 years old . Find his present age .

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Answer 1

Answer:

1.let the 3 consecutive no. Be x, x+1,x+2

x+ x+1+x+2=48

3x+3=48

3x=48-3

x=45/3

x=15 x+1=16 x+2=17

2.let the 3 consecutive no. Be x, x+1,x+2

x+x+1+x+2=69

3x+3=69

x=22 x+1=23 x+2=24

3.let the 3 consecutive no. Be x, x+1,x+2

x+x+1+x+2=156

3x+3=156

x=51 x+1=52 x+2 =53