Monday, 30 December 2019

Find 3 consecutive whole numbers.......


          (whole numbers start from 0,1,2,3…..)

Let the 3 consecutive whole numbers be xx + 1 and x + 2

According to the 1st condition, the sum of the whole number is more 

than 45

x + x + 1 + x + 2 > 45

3x + 3 > 45    i.e  3x > 45 – 3   i.e  3x > 42     i.e  x > 42/3

 x > 14    i.e x = 15     (x + 1) = 15 + 1 =16   (x + 2)= 15 + 2 = 17

According to the 2nd condition, the sum of the whole number is less than 54

x + x + 1 + x + 2 < 54

3x + 3 < 54    i.e  3x < 54 -3    i.e 3x < 51   i.e x < 51/3

 x < 17

x = 16   (x + 1) 16 +1 = 17    (x + 2) 16 + 2= 18

No comments:

Post a Comment