Speed of train = 1800/9 = 200 m/sec Let the speed of the man be ‘s’ m/sec Relative speed of the train = (200 – s) m/sec According to the question, (200 – s) = 1800/18 Or, s = 200 – 100 = 100 Therefore, speed of the man = 100 m/sec
The total number of students in a school is 20020. If the ratio of boys to the girls in the school is 73:81 respectively, then find the total number of ...
A sum of Rs. 723 is divided among X, Y and Z such that X gets Rs. 168 more than Y. Y gets Rs. 78 more than Z. Find the share of Z?
If 3 kg of metal, of which 1/4 is aluminium and the rest is magnesium, be mixed with 5 kg of metal, of which 1/3 is aluminium and the rest is magnesium,...
P, Q and R together started a business. Seven times the investment of P equals eight times the investment of Q and the capital of Q is twice that of R. ...
120 is divided into two parts in such a way that the sixth part of the first part and the seventh part of the second are in the ratio 5 : 6. How much pe...
The price of sugar is increased by 40%. If the expenditure is not allowed to increase, the ratio between the reduction in consumption and the original c...
If the number of coins in purse A and purse B is in the ratio 4:5, and the number of coins in purse C to purse D is in the ratio 3:4. Additionally, the ...
The incomes of A, B, and C are in the ratio 3:4:5, and their expenditures are in the ratio 2:3:4. If A saves ₹2,000, what is the income of C?
Total population of city P and Q is 2240 and 2650 respectively. If the ratio of number of males to females in city is P and Q is 4:3 and 3:2 respectivel...
Find 'X' if the below three numbers are in proportion.
2.6, 1.3, X
