Q582
If 25% of 400 + 35% of 1260 + 27% of 1800 = 1020 + x, then the value of x lies between:
A.
6 to 10
AnswerB.
0 to 5
C.
11 to 15
D.
16 to 20
Answer: Option A
Solution
Answer: Option A
Solution:
400 × 25% + 1260 × 35% + 180 × 27% = 1020 + x100 + 441 + 486 = 1020 + x
1027 = 1020 + x
x = 7