Sri Raman expends 25% of his monthly income on food, 15% on education of children and 10% on transporting. He spends 40% of remaining on miscellaneus expenditures and saves Rs. 5550. Find the monthly income of Sri Raman ?

In one day a woman does two-third of the work done by a man; and a child does half of the work done by a woman. If 15 men can complete a job in 12 days, in how many days will 10 men, 9 women and 6 children together complete that job ?

In a Physics class test, marks obtained by Renu and Neeta were in the ratio of 8 : 9 respectively. The marks obtained by Neeta and Seema were in the ratio of 6 : 7. If Renu obtained 64 marks what marks did Seema get in the examination ?

The perimeter of a square room is 32 cm. Then what will be the cost of total carpets which may cover all the sides at the rate of Rs. 145 per square cm ?

Ramareek Bhai bought 24 kg. of rice at the rate of Rs. 20 per kg. and he also bought 40 kg of rice at the rate of Rs. 25 per kg. He mixed both the rice and sold it at the profit of 20%. Find the selling price of the mixed per kg.