Explanation

Let the numbers be x, x + 2, x + 4, x + 6, x + 8 and x + 10.

Given (x + 2) + (x + 10) = 24
=> 2x + 12 = 24 => x = 6
The fourth number = x + 6 = 6 + 6 = 12.

Explanation

Total Students = X

Fail Student = 45% of X

Pass Student= 550

X x 45% of X = 550

X value is one so 45% of x means .45 so we less one from .45

1 - .55 = 550

X = 550/.55

X = 55000/55

X =1000

Explanation

Average Age of Iqra, Rashida and Rizwana

= (17+16+12)/ 3

= 45/3

Average Age =15

Increase Age After added Ali = 5 x 4 =20 years

15+20 = 35

Ali age = 35

Explanation

تقسیم کرنے کا طریقہ ضرور سکھیں