$1$ quintal $25$ $kg$ is what percent of $1$ metric tonne?

In an examination,there were $2000$ candidates,out of which $900$ candidates were boys and the rest were girls. If $32 \%$ of the boys and $38 \%$ of the girls passed,then the total percentage of failed candidates is:

Six-elevenths of a number is equal to $22 \%$ of the second number. The second number is equal to one-fourth of the third number. The value of the third number is $2400$. What is $45 \%$ of the first number?

The monthly income of a person is $Rs. 5000$. If his income is increased by $30\%$,then what is his monthly income now?

Dinesh's monthly income is four times Suresh's monthly income. Suresh's monthly income is $20\%$ more than Jyoti's monthly income. Jyoti's monthly income is $₹ 22,000$. What is Dinesh's monthly income?

$6 \frac{2}{3} \%$ expressed as a fraction in its lowest term is: