From the pie chart,
140o+15o+20o+35o+90o+Rent=360o
⟹ Rent=360−300=60o=12,000 Rs.
⟹ 5o=1,000 Rs.
⟹ Saving=25%=90o=18,000
Food =140o=28,000
Clothes =15o=3,000
Fuel =20o=4,000
Miscell =35o=7,000
Monthly salary = Total amount =12,000+18,000+28,000+3,000+4,000+7,000=72,000 Rs.
Hence, Rs. 72,000 is the monthly salary.