Question
Pipes A and B can fill a tank in 43.2 minutes and 108
minutes, respectively. Pipe C can empty it at 3 litres/minute. When all the three pipes are opened together, they fill the tank in 54 minutes. The capacity (in litres) of the tank is:Solution
LCM of 43.2, 108 and 54 = 432 units = Total work Efficiency of A = 432/43.2 = 10 units/min Efficiency of B = 432/108 = 4 units/min Efficiency of (A + B + C) = 432/54 = 8 units/min Efficiency of C = (10 + 4 – 8) units/min ⇒ 6 units/min Capacity of tank = (432/6) × 3 litres ⇒ (72 × 3) litres ⇒ 216 litres
"Anuj and Bishnu initiated a Construction business with Anuj investing Rs. 30,000 and Bishnu investing _________ a certain amount of money. They hired...
A and B invest in a business in the ratio of 2:3, B left the business after X months, C joins the business with twice investment as compared to that of ...
Three persons Soham, Puneet, Chetan whose salaries together amount to Rs.6,44,000 spends 75, 80 and 60 percent of their salaries respectively. If their ...
In a partnership, the amount invested by ‘P’ and ‘Q’ is in the ratio 7:4. The amount invested by ‘R’ is Rs. 600 less than the amount investe...
A and B started a business by investing sum in the ratio 5:7 respectively for 6 and 10 months respectively. If annual profit earned by B is Rs.1400, the...
A businessman earned Rs. 50,000 profit. He invested 30% of this profit in stocks, donated 10% of the remaining to charity, and spent 15% of the rest on ...
A and B together started a business by investing their capital in the ratio of 11:8, respectively and total amount invested by them together is Rs. 7600...
Meera started a business with a capital of Rs. 4000. After 2 months, Mohan joined her with a capital, which is 50% more than the capital of Meera. Find ...
A, B and C enter into a partnership, A invest 6X + 15000, B invest 3X + 1000 and C invest X + 8000 for one year if B share is 4000 from total profit of ...
A launched a business by investing Rs. 1920. Later, B joined the venture, contributing Rs. 2280. At the year's end, the total profit was Rs. 8600, with ...
