8 , 4.5 , 5.5 ,13 , 56 , ?

Which of the following are like decimals? 5. 5 ,\ 5. 05 ,\ 5. 005 ,\ 5. 50 5. 5 ,\ 0. 55 ,\ 5. 55 ,\ 5. 555 5. 5 ,\ 6. 6 ,\ 7. 7 ,\ 8. 8 0. 5 ,\ 0. 56 ,\ 0. 567 ,\ 0. 5678

9 4.5 4.5 6.75 13.5 33.75 ?

9 4.5 4.5 6.75 13.5 33.75 ?

Choose the correct alternative so that a series can be established . 0.5, 1.5, 4.5, 13.5, (….)

2, 3, 5, 8, 13, 21, ….

Find the orthocentre of the triangle formed by the points (-5, -7) , (13 , 2) , (-5,6) .

Simplify : 5 - 6.5 div 13 + 2.3 xx 0.8 + 0.4

3 5 8 13 21 34 ?

Add 26.4, 163.05, 8.75 and 5.6.