It costs ₹ x each to make the first thousand copies of a compact disc and ₹ y to make each subsequent copy… · ABC26GN1021

Subject: General Aptitude · Chapter: Simplification

It costs ₹ $x$ each to make the first thousand copies of a compact disc and ₹ $y$ to make each subsequent copy. If $z$ is greater than 1000, how much will it cost to make $z$ copies of the compact disc?

(a)$z x-z y$

(b)$1000 x+y z$

(c)$1000(x-y)+y z$

(d)$1000(z-y)+x z$

Answer

Answer (as printed): C

Explanation

Required cost $=₹[1000 \times x+(z-1000) \times y]$ $$\begin{aligned} & =₹(1000 x+z y-1000 y) \\ & =₹[1000(x-y)+y z] . \end{aligned}$$

Explanation as extracted from the printed page; notation may be imperfect.

Study loop for Simplification

1. Practise the PYQsPrevious-year questions, with answers

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