Question

A student secures $90\%,60\%$, and $54\%$ mark in test papers with $100,150$ and $200$ respectively as maximum marks. The percentage of his aggregate is:

• A. $64\%$
• B. $68\%$
• C. $70\%$
• D. $noneofthese$

Answer 1

The correct option is A $64\%$

Let us consider the total scored $=(90\%0f100+60\%of150+54\%of200)$

$(\frac{90}{100}\times 100+\frac{60}{100}\times 150+\frac{54}{100}\times 200)$

$=288$

Total maximum marks $=(100+150+200)=450$

Aggregate percentage $=(\frac{288}{450}\times 100)\%$

$=64\%$