Cost accounting help!!

can someone plz help me with this problem....plz provide me the correct solution

A company produces a single product and sells it at Rs.200 each. The variable cost of the product is Rs.120 per unit and the fixed cost for the year is Rs.96,000.

Calculate
1) P/V ratio
2) Sales at break even point
3) Sales unit required to earn a target net profit of Rs.1,20,000
4) Sales units required to earn a target net profit of Rs.1,00,000 after income tax, assuming income tax rate to be 50%.
5) Profit at sales of Rs.7,00,000.