Arjun and Bittu together covered a total distance of 150 km. Arjun travels at a speed of 75 km/hr and Bittu at 25 km/hr. The total time they spent traveling is 4.4 hours. Calculate the distance that Arjun covered.
ATQ, Let the distance covered by Arjun be 'd' km. Therefore, distance covered by Bittu = (150 – d) km According to the question, d/75 + (150 – d)/25 = 4.4 Or, {d+ 3(150 – d)} × 75 = 4.4 2d = 450 – 75 × 4.4 Or, 2d = 450 – 330 Or, d = 120/2 = 60 km
If the exchange rate of some economy depreciates vis−a−vis US $ and if the Marshal Lerner condition is satisfied, then the current account deficit o...
A two-person zero-sum game means that the
GNP exceeds NNP by:
Claudia would be willing to pay as much as $100 per week to have her house cleaned. John's opportunity cost of cleaning Claudia’s house is $70 per...
An oil exploration company intends to drill an exploratory well in each of two geologically unrelated regions A and B. If the probability of f...
In a two variable linear regression model, four X and Y values were given and value of F statistic needs to be calculated. Regression equation of X on Y...
Suppose that the exchange rate of the Indian rupee appreciates by 10 per cent relative to the currencies of India’s trading partners. Over the same pe...
A society in which there was garbage collection problem. But there was voluntary problem of payment so some people would participate and some wouldn’t...
Let the correlation coefficient between X and Y be 0.6. Random variables Z and W are defined as Z=X+5 and W=Y/3. What is the correlation coefficient bet...
“ All Giffen goods are inferior, but all inferior goods are not Giffen”. The statement is
