Question
Average of 15 numbers is 78. The average of the first
seven is 74 and of the last five is 92. The eighth number is 40% of the ninth, and the tenth number is 60% more than the ninth. Find the ninth number.Solution
Let ninth number is x Eighth number = 0.40x Tenth number = 1.60x According to question; x + 0.40x + 1.60x = 15 × 78 – 7 × 74 – 5 × 92 = 192 Or, 3x = 192 Or, x = 64
Commodity X and Y have an equal price elasticity of supply. The supply of X rises from 400 units to 500 units due to a 20 percent rise in its price. Cal...
If the money supply grows 5 per cent, and real output grows 2 per cent, prices should rise by
Inflation Figures (Aug/Sept 2025): What was the approximate year-on-year inflation rate for the Consumer Price Index (CPI) and the Wholesale Price Index...
If rxy = 0.75, then ryx will be:
From the information provided in the following table, calculate the GNPmp
If you have found the percentage of the value of sales accounted for by the four largest firms in an industry, you have found the
The theory of purchasing power parity says that       .
Market failure is the inability of
According to the Romer model, if the stock of ideas increases by 15 %, how much will output per worker increase when all else is equal?
...
