Maths

1. BBA 103 UNIT 1 (Practice set only)
Q1.The electric current I, is amperes, in a circuit varies directly as the voltage V. When 12 volts are applied, the
current is 4 amperes. What is the current when 18 volts are applied?
Q2. The number of kilograms of water in a person’s body varies directly as the person’s mass. A person with a
mass of 90 kg contains 60 kg of water. How many kilograms of water are in a person with a mass of 50 kg?
Q3. The time it takes to fly from Los Angeles to New York varies inversely as the speed of the plane. If the trip
takes 6 hours at 900 km/h, how long would it take at 800 km/h?
Q4. A certain project can be completed by 5 workers in 24 days. In order to finish the project sooner, the company
plans to hire additional workers. How many workers are needed to finish the project in 15 days?
Q 5. In a survey of 22,000 people, 14,300 responded that salary was the most important consideration in their
ideal career. What percent of the people felt that salary was not the most important consideration?
Q6.Two numbers are respectively 20 % and 50 % more than a third number. Find the ratio of the two numbers.
Q7. The ratio of three numbers is 3:4:5 and the sum of their squares is 1250. The sum of the numbers is …
Q 8. Due to an increase of 30 % in the price of eggs, 3 eggs less are available for Rs 7.80. The present age rate of
eggs per dozen is:
Q9. Income of Rahim is Rs 12000 per month and that of Ami is Rs 191520 per annum. If the monthly expenditure
of each of them is Rs 9960 per month find the ratio of their savings.
Q10. Of the 288 persons working in a company, 112 are men and the remaining are women. Find the ratio of the
number of
(a) Men to that of women.
(b) Men to the total number of persons.
(c) Women to the total number of persons.
Q11. When Chinmay visted chowpati at Mumbai on a holiday, he observed that the ratio of North Indian food
Stalls to South Indian food stalls is 5:4. If the total number of food stalls is 117, find the number of each type o
food stalls.
Q 12. Find, m, if 7, 14, m are in continued proportion.
Q13. 20 apples are distributed between Aaron and Ben in the ratio 2 : 3. Find, how many
does each get?
Q14. Evelyn bought some books at the local bookstore. Her total bill was $31.50, which included 5% tax. How
much did the books cost before tax?
------------------