The total expenditure per month of a household consists of a fixed rent of the house and mess charges depending upon the number of people sharing the house. The total monthly expenditure is Rs. 3900 for 2 people and Rs. 7500 for 5 people. Find the rent of the house and the mess charges per head per month.

The ratio of incomes of two persons is 9:7 and the ratio of their expenditures is 4:3. If each of them saves Rs 200 per month, find their monthly incomes.

Out of her total income Mrs Sharma spends 20% on house rent and 70% of the rest on household expenditure. If she saves Rs 1800, what is the total income?

A part of monthly hostel charges is fixed and the remaining depends on the number of days one has taken food in the mess. When a student A takes food for 25 days he has to pay 4500 as hostel charges whereas a student who takes B food for 30 days, pays 5200 as hostel charges. Find the fixed charges per month and the cost of food per day.

Income of Rahim is Rs 25, 000 per month and that of suresh is Rs 30, 000 per month. If the monthly expenditure of each of then is Rs 21,000 find the ratio of their savings .

The ratio of incomes of two persons is 9:7 and the ratio of their expenditures is 4:3 . If each of them manages to save Rs 2000 per month, find their monthly incomes.

A picnic is being planned in a school for Class VII. Girls are 60% of the total number of students and are 18 in number.The picnic site is 55 km from the school and the transport company is charging at the rate of Rs 12 per km. The total cost of refreshments will be Rs 4280. Can you tell.1. The ratio of the number of girls to the number of boys in the class?2. The cost per head if two teachers are also going with the class?3. If their first stop is at a place 22 km from the school, what per cent of the total distance of 55 km is this? What per cent of the distance is left to be covered?

The monthly incomes of Aryan and Babban are in the ratio 3 : 4 and their monthly expenditures are in the ratio 5 : 7. If each saves Rs. 15,000 per month, find their monthly incomes using matrix method.

A part of monthly hostel charges is fixed and the remaining depends on the number of days one has taken food in the mess. When a student A takes food for 20 days she has to pay 1000 as hostel charges whereas a student who takes B food for 26 days, pays 1180 as hostel charges. Find the fixed charges and the cost of food per day.

A family with a monthly income of Rs 20,000 had planned the following expenditures per month under various heads

The monthly incomes of Aryan and Babban are in the ratio 3 : 4 and their monthly expenditures are in the ratio 5 : 7. If each saves Rs. 15000 per month, find their monthly incomes using matrix method. This problem reflects which value?