Question

anila obtained 650. Marks out of 800 and his friends unilateral obtained 450. Marks out of 600. In an examination. Whose performance is better

Answer 1

To do this, we have to convert the total marks into an equal number and the score consecutively.

lcm(800,600)=2×3×4×100=2400

$\frac{650}{800}\times\frac{3}{3}=\frac{1950}{2400}$

$\frac{450}{600}\times\frac{4}{4}=\frac{1800}{2400}$

Therefore, the common marks would be 1950 out of 2400 for Anita and 1800 out of 2400 for others.

Therefore, Anita scored better.

Ans=Anita

Answer 2

according to the question,
Anila scored = 650 / 800
and,
her friend scored = 450 / 600
therefore ,
650 / 800 * 3 / 3 = 1950 / 2400
and,
450 / 600 * 4 / 4 = 1800 / 2400
therefore now,
since 1950 / 2400 > 1800 / 2400
therefore Anila obtained more marks.
  i hope that my answer is correct and will help u.........................^_^