$0.06 \%$ of $250 \%$ of $1600$ is

In a class of $60$ students, $40\%$ can speak only Hindi, $25\%$ can speak only English and the rest of the students can speak both the languages. How many students can speak English?

Shruti decided to donate $12 \%$ of her salary to an orphanage. On the day of donation,she changed her mind and donated $Rs. 3150$,which was $75 \%$ of what she had decided earlier. How much is Shruti's salary?

$A, B$,and $C$ invested in a business in the ratio of $3:2:5$ respectively. If $A$ earns $100\%$ more profit than $B$ and $C$ earns $40\%$ more profit than $B$,then what is the share of $B$ in the profit?

Rice is now being sold at $Rs. 30$ per $kg$. During last month,its rate was $Rs. 26$ per $kg$. Find by how much percentage must a family reduce its consumption to keep the expenditure fixed?

In an examination,there are three papers and a candidate has to get $35 \%$ of the total to pass. In one paper,he gets $62$ out of $150$ and in the second $35$ out of $150$. How much must he get,out of $180$,in the third paper to just qualify for a pass?