If 25% of 400 + 35% of 1260 + 27% of 1800 = 1020 + x, then the value of x lies between:

A. 6 to 10

B. 0 to 5

C. 11 to 15

D. 16 to 20

Answer: Option A

Solution(By Examveda Team)

400 × 25% + 1260 × 35% + 180 × 27% = 1020 + x
100 + 441 + 486 = 1020 + x
1027 = 1020 + x
x = 7