SSC CGL 2024 PYQ — Question 65

SSC CGL - 13 Sep 2024 - Shift 3 • Quantitative Aptitude • Q65

If tan A = 575\over 7, then find the value of 7sinA−3cosA7sinA+3cosA+4{7sinA-3cosA\over 7sinA+3cosA}+4.

Show answer & explanation

Correct answer: A

Explanation

The correct answer is Option 1 i.e. 4144{1\over4}.

tan A = sinAcosA\frac{sinA}{cosA} = 57{5\over 7}  

7sinA−3cosA7sinA+3cosA+4{7sinA-3cosA\over 7sinA+3cosA}+4

= 7×5−3×77×5+3×7+4{7\times5-3\times7\over 7\times5+3\times7}+4

= 1456+4\frac{14}{56}+4

= 4144{1\over4}