Nutan pays Rs., 2140 for 3 calculator and 4 Pen while he pay Rs., 1355 for an additional calculator

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7.Profit and Loss

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Nutan pays $Rs.\, 2140$ for $3$ calculator and $4$ Pen while he pay $Rs.\, 1355$ for an additional calculator and $5$ Pen. Then what he paid for Calculator only in $RS.$?

A

$175$

B

$480$

C

$655$

D

Can't be determined

Solution

Let cost of $1$ calculator be Rs. ${ }^{\prime} C^{\prime}$

and cost of $1$ pen be $Rs$. $'P'$

According to question:

$3 C+4 P=2140$

$1 C+5 P=1355$

Solving $(i)$ and $(ii)$

We get $C=$ Rs. $480 \quad[$ cost of $1$ calculator]

Standard 13

Quantitative Aptitude

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