$0.01$ is what percent of $0.1$?

$3.5$ can be expressed in terms of percentage as:

$x\%$ of $360 = 129.6$. Find $x$.

To attract more visitors,the zoo authority announces a $20 \%$ discount on every ticket,which costs $25 \ p$. For this reason,the sale of tickets increases by $28 \%$. Find the percentage of increase in the number of visitors.

The price of sugar is reduced by $2 \%$. How many $kg$ of sugar can now be bought for the money which was sufficient to buy $49$ $kg$ of sugar earlier?

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?