The line graph shows the litres of oil sold by a shop on six days, D1 to D6.

If 10% of the sale of D2 is transferred to D3, then the sale on D3 is what percent of 125% of the sale on D4 (approximately)?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 85.47%
The transferred amount is added to D3; the new D3 figure is then compared with 125% of D4, which is the base.
10% of D2 \(=10\%\) of \(5200=520\)
New sale on D3 \(=4950+520=5470\)
125% of D4 \(\displaystyle =\frac{125}{100}\times5120=6400\)
Percentage \(\displaystyle =\frac{5470}{6400}\times100=85.47\%\) (approximately)