Question
A water tank has a capacity of 500 liters. A tap fills
the tank at a rate of 10 liters per minute, while another tap empties it at a rate of 5 liters per minute. If both taps are opened simultaneously, how long will it take to fill the tank completely?Solution
Net filling rate = Filling rate - Emptying rate = 10 - 5 = 5 liters/minute. Time to fill 500 liters = Capacity / Net rate = 500 / 5 = 100 minutes. Correct answer: B) 100 minutes
‘Anuj’ and ‘Bheem’ started a business with an investment of Rs. (m + 5000) and Rs. (3m – 2500) respectively. After eight months, ‘Bheem’ i...
Three partners, 'A', 'B', and 'C', invested in a business with contributions of Rs. 24,000, Rs. 15,000, and Rs. 18,000, respectively. They committed the...
If the ratio of time periods of investment of A and B is 2:5, profit at the end of the year is Rs.140000 and A’s share in it is Rs.40000, then what is...
A, B and C invested in a business in the ratio 6:8:9. If B invested for a period whose numerical value is 112.5% of B’s investment but A and C inv...
‘A’ and ‘B’ entered into a partnership by investing Rs. 2500 and Rs. 3500, respectively. If ‘A’ invested his sum for only 7 months and the t...
A, B and C hired a taxi for Rs. 780 and used it for 3, 4, 6 hours respectively. Hiring charges paid by B are:
‘P’ and ‘Q’ invested Rs. ‘x’ and Rs. (x + 3000) respectively for 10 months and 5 months. The profit earned by P and Q is in the ratio 4:3. W...
P started a business with an investment of Rs.14000, after 6 months Q joined him with Rs.16000 and after another 6 months R joined them with Rs.20000. I...
A and B invested Rs.5000 and Rs.10000 in a business respectively and after 3 months B withdrawn 50% of his initial investment and again after 5 months h...
'A' and 'B' started a partnership by investing Rs. 9,000 and Rs. 12,000 respectively. 25% of the total profit is given to 'A' for managing the business,...
