Ramola's monthly income is three times Ravina's monthly income. Ravina's monthly income is $15\%$ more than Ruchira's monthly income. Ruchira's monthly income is $₹ 32,000$. What is Ramola's annual income?

$860 \%$ of $50 + 50 \%$ of $860 = ?$

If the height of a triangle is decreased by $40 \%$ and its base is increased by $30 \%$,what will be the effect on the area?

Due to a price hike of $20 \%$, $4 \text{ kg}$ less sugar is available for $₹ 120$. What is the initial price per kg of sugar (in $\text{ per kg}$)?

Rajesh spent $Rs. 44620$ on Deepawali shopping,$Rs. 32764$ on buying a computer,and the remaining $32\%$ of the total amount he had as cash with him. What was the total amount?

How many students passed in first class?
Statements:
$I$. $85 \%$ of the students who appeared in the examination have passed either in first class,second class,or pass class.
$II$. $750$ students have passed in second class.
$III$. The number of students who passed in pass class is $28 \%$ of those who passed in second class.