SSC GD 2024 PYQ — Question 58

SSC GD Const (English) - 22 Feb 2024 - Shift 3 • Quantitative Aptitude • Q58

If 35 percent of P = 60 percent of Q and Q is (z/3) percent of P, then what is the value of z?

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Correct answer: A

Explanation

The correct answer is option 1 i.e. 175.

⇒ 35%  of P = 60%  of  Q

⇒ Q = z / 3 % of  P

⇒ 35%  of  P = 35 / 100 ×  P = 7 / 20 × P

⇒ 60% of Q = 60 / 100 ×  Q = 3 / 5 × Q 

⇒720×P=35×Q\frac{7}{20} \times P = \frac{3}{5} \times Q

⇒ Q = z3×1100×P=z300×P\frac{z}{3} \times \frac{1}{100} \times P = \frac{z}{300} \times P

 

Q = z300×P\frac{z}{300} \times P

 

⇒ 720×P=35×z300×P\frac{7}{20} \times P = \frac{3}{5} \times \frac{z}{300} \times P

⇒ 720=3z1500\frac{7}{20} = \frac{3z}{1500}

⇒ 720=z500\frac{7}{20} = \frac{z}{500}

 

⇒ 7 × 500 = 20 × z

⇒ 3500 = 20z

⇒ z = 3500 / 20 = 175