SSC CHSL 19 Mar 2020 Shift 1 Paper

Question : 64 of 100

Marks: +1, -0

Ravi sells a chair to Mohan at a profit

10 \%

and Mohan sells it to Govind at profit

20 \%

. If Govind pays ₹ 1320 for it. Then, the cost price for Ravi is

Solution:

Here,

a=10 \%, b=20 \%

∴ According to the formula,
Net profit

=(a+b+{a b}/{100}) \%

=(10+20+{10 \×20}/{100}) \%

=32 \%

We know that,

{\CP}=({100}/{100+{ \Profit\% }}) \×{\SP}

={100}/{(100+32)} \×1320

[\∵{\SP}=₹ 1320

, given

]

=₹ 1000

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