Question
 If 15 women or 18 men or 12 boys can do a piece of
work in 18 days of 10 hours each, find how many boys assisted by 5 women and 6 men will finish the same work in 20 days of 6 hours each.Solution
Given, 15 women = 18 men = 12 boys ∴ 1 woman = 6/5 men, 1 boy = 3/2 = 1.5 men Now, 5W + 6M =12 M Total number of men required = 18 X 18/20 X 10/6 = 27 Number of men already present = 12 Hence, 15 men more are required. ∴ No. of boys required = 10
A and B started a business by investing Rs.500 and Rs.600 respectively. After 4 months, A increased his investment by Rs.900. Find the ratio of annual ...
‘A’, ‘B’ and ‘C’ started a business by investing Rs. 4500, Rs. 5000 and Rs. 3000, respectively. After 4 months, ‘B’ left and ‘A’ and...
'A' and 'B' started a business by investing Rs. 6,000 and Rs. 7,000, respectively. 1 year later, 'A' and 'B' increased their investments by 60% and Rs. ...
A and B started a business by investing sum in the ratio 3:4 respectively for 8 and 10 months respectively. If annual profit earned by B is Rs.1200, the...
In a business, A invested Rs. 1800 more than that by B. After 8 months, A left the business. If at the end of the year, profit earned by B is equal to t...
X and Y began a business with Rs. 12,000 and Rs. 15,000 respectively. After 3 months, X decreased his capital by Rs. 2,000 and Z invested Rs. 10,000 in ...
Three partners, R, S, and K, form a partnership business with capitals in the ratio of 3:5:8. After four months, R, S, and K added Rs. 3000, Rs. 4500, a...
A and B together started a business by investing their capital in the ratio of 8:7, respectively and total amount invested by them together is Rs. 1500....
A, B and C hired a taxi for Rs. 820 and used it for 9, 13, 19 hours respectively. Hiring charges paid by B are:
A started a business with an investment of Rs.1400. After some months, B joins the business with an investment of Rs.2400 and after two more months C jo...
Relevant for Exams:
