Question
If (6x + y) = 180 and 5x:2y = 25:12, then find the
value of (2x² + 5y²).Solution
Given, 5x:2y = 25:12 Or, 5x × 12 = 2y × 25 Or, 60x = 50y So, x:y = 5:6 So, let the values of 'x' and 'y' be '5k' and '6k', respectively. ATQ, (6x + y) = 180 Or, 6 × 5k + 1 × 6k = 180 Or, 30k + 6k = 180 Or, 36k = 180 So, 'k' = 5 Therefore, values of 'x' and 'y' are 25 and 30, respectively. So, (2x² + 5y²) = (2 × 25² + 5 × 30²) = (2 × 625 + 5 × 900) = (1250 + 4500) = 5,750 Hence, option d.
Which of the following is most likely an essential characteristic of an asset?
How many years will it take to double your money with yearly compounding if the rate of interest is 12%?
In the RBI’s circular on hedging foreign exchange risk, what is the maximum notional amount for derivative contracts involving INR without requiring u...
In a business context, what does the term "whistleblowing" refer to?
The adjustments required in cash flow from operations to find free cash flow to the firm are:
How many international credit rating agencies’ ratings have been allowed by RBI to be used by banks for the purposes of risk weighting their claims fo...
In a corporate setting, what does the term "conflict of interest" refer to?
In the context of corporate governance, what does ethics contribute to?
The current PCA Framework was revised in which year?
In the context of the Central Limit Theorem (CLT), which of the following statements is correct?
