Let the length of the tunnel be ‘x’ meter. Speed = 54 × (5/18) m/sec = 15 m/sec Time = 1 minute = 60 seconds. Let the length of the tunnel be x metres. Then, (460 + x)/60 = 15 =>(460 + x) = 900 => x = 440 m
The contributions made by A and B are in the ratio of 2:5. If 10% of total profit is donated and A gets 8100 as his share of profit, what is the total p...
Bina and Bimal started a business by investing Rs. 25,000 and Rs. 35,000 respectively. Bina also worked as the active manager and for that, she is entit...
P and Q started a business by investing Rs.8000 and Rs.6400 respectively. After 6 months, Q increased his investment by a certain percentage such that a...
A, B and C invested in partnership. A invest Rs.8000 for 7 months, B invests Rs.6000 for 4 months and C invests Rs.12000 for 2 months. C is working part...
Three Partners Chandra, Shekhar and Azad invested in the ratio of 3/2, 2/3, 4/3 in a business. After 3 months Chandra decreased his capital by 50%. If t...
A and B together started a business with initial investment in the ratio of 1:2, respectively. The time-period of investment for A and B is in th...
The savings of I and J are the same. The difference between J's expenditure and the savings of I and J together equals 0. J's income is Rs. 54,000, and ...
Karun and Varun invested Rs 2800 and Rs. x in a business. After 3 months, Karun added Rs 400 while Varun withdrew Rs 500. After a year out of a total pr...
‘A’, ‘B’ and ‘C’ started a business by investing Rs. 4,000, Rs. 4,800 and Rs. 3,200, respectively. After 6 months, ‘B’ decreased his inv...
A invested Rs X in a scheme. After 6 months, B joined with Rs 1000 more than that of A. After an year, ratio of profit of B to the total profit w...
