Question
A and B can complete a work in 12 days and 15 days
respectively. If they work together for 4 days and then B leaves, in how many days can A complete the remaining work?Solution
ATQ, A's daily work = 1/12 B's daily work = 1/15 A and B together do 1/12 + 1/15 = 3/20 of the work in one day. In 4 days, they complete 4 × (3/20) = 3/5 of the work. Remaining work = [1 - (3/5)] = 2/5 A will complete the remaining work in (2/5) / (1/12) = 24/5 = 4.8 days.
The principle of "Ability to Pay" in taxation is most closely associated with:
If quantities of all commodities change in the same proportion then
Which of the following four-firm concentration ratios is most consistent with monopolistic competition?
A central bank decides to increase money supply. For a given price level, the LM curve is expected to
X, Y and Z constitute a random sample of size 3 from normal population with the mean µ and variance α2, find the efficiency of (X...
What did the Securities and Exchange Board of India (Sebi) approve regarding settlement and market regulations?Â
A spot purchase of a currency coupled with simultaneous forward sale of the same currency is called:
When exchange rate in terms of domestic currency rises:-
