Ratio and Proportion
A bag contains 50 p, 25 P and 10 p coins in the ratio 3: 5: 7, amounting to Rs 345. Find the number of coins of each type.
(a.) 300, 200,600
(e.) None of these
The reducion in the speed of engine from its original speed is directly proportional to square of the number of bogeys attached to it. The speed of the train is 120 km/hr when there are 4 bogies attached to it. And 60km/hr when there are 6 bogies. What is the maximum numver of bogies that can be attached to train so that it can move?
A stall sells popcorn and chips in packets of 3sizes: large,super and jumbo. The no. Of largd,super and jumbo packets in its stock are in ratio 7:17:16 for popcorn and 6:15:14 for chips. If total no. Of popcorn packets is same as that lf chips packets , then the number of jumbo popcorn packets aand jumbo chips packets are in ratio?
akbar and birbal started a business with some investments. Akbar as a working partner received 40% of the annual profit as salary and the remaining was equally divided among akbar and birbal. If the entire profit was divided among akbar and birbal in the ratio of their investments, akbar would have received Rs900 less than what he actually got. Birbal got a profit share of Rs 2100. If birbal's investment is Rs 45000, Akbar's investment is (in rupees). ?
the ratio of Kumar's and abhishek's income is 4:5 and that of their expenditure is 2:3. If kumar saves 1/3rd of his income, find the ratio of their savings.
The ratio of the ages of Ram and Mohan 12 years ago was 2:3 and the ratio of the ages of Mohan and Sohan 12 years from now will also be 2: 3. If the average age of Ram and Sohan at present is 57 years, the ratio of the ages of Mohan Sohan was/will be 1: 2
A. 6 years ago
B. 12 years ago
C. 18 years ago
D. 6 years from now
E. 18 years from now
now from here
(4x+12 +9x+24)/ 2 = 57