The correct option is A 6300
Manoj total salary = Rs 13500
One-third of the salary for saving = 1/3 × Rs 13500
= Rs 4500
Remaining money = Rs 13500 – Rs 4500
= Rs 9000
Amount spent on food = 50%
= 50/100 × 9000
= 50 × 90
= 4500
Amount spent on house rent = 20%
= 20/100 × 9000
= 20 × 90
= Rs 1800
Hence, total amount spent on both food and house rent
= Rs 4500 + Rs 1800
= Rs 6300
Therefore, total amount spent on food and house rent is Rs 6300