Question
If (7x + 5y) = 206 and 3x:2y = 27:16, then find the
value of (x² + 2y²).Solution
Given, 3x:2y = 27:16 Or, 3x × 16 = 2y × 27 Or, 48x = 54y So, x:y = 9:8 So, let the values of 'x' and 'y' be '9k' and '8k', respectively. ATQ, (7x + 5y) = 206 Or, 7 × 9k + 5 × 8k = 206 Or, 63k + 40k = 206 Or, 103k = 206 So, 'k' = 2 Therefore, values of 'x' and 'y' are 18 and 16, respectively. So, (x² + 2y²) = (18² + 2 × 16²) = (324 + 2 × 256) = (324 + 512) = 836 Hence, option a.
Which bank has tied up with Cholamandalam MS General Insurance to offer health and general insurance products to its customers?
Who won the Best Actor in a Leading Role (Male) award at the 68th Hyundai Filmfare Awards?
President Smt. Draupadi Murmu released a postal stamp in whose memory?
What is the primary objective of the MoU signed between REC Limited and Punjab National Bank (PNB)?
In which year will the 8th Pay Commission be implemented?
How many ships were registered in India’s maritime fleet as of 2025, according to recent maritime law updates?
Who has been conferred with Silver Peacock for Best Actor (Male) at the International Film Festival of India?
According to the rating assessment, exports to the United States account for approximately what share of India’s GDP?
In the Namo Drone Didi Scheme, which committee is responsible for monitoring operations and ensuring the quality of services provided through drones?
Brand Finance has come with Brand Finance 2022 Global 500 report. As per the report, ________ has retained its position as the most valuable brand in 2022.
Relevant for Exams:
