NCHMCT JEE 2020 Question Paper with solutions for online practice

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Question : 84 of 200

Marks: +1, -0

simple interest. If the rate becomes

1.5

times of itself, the amount of the same principal in

5 {yr}

will be

₹ 8000
₹ 8250
₹ 9250
₹ 9000

Solution:

SI = Amount-Principal

∴ \;\; {SI}=\;{P × R × T}/{100}

⇒ \;\; 1200=\;{6000 × R × 4}/{100}

⇒ \;\; R=\;{1200 × 100}/{6000 × 4}=5 \%

New rate of

R=5 × 1.5=7.5 \%

Then,

\;\; {SI}=\;{6000 × 7.5 × 5}/{100}=

₹ 2250

∴

Amount

=₹(6000+2250)=

₹ 8250

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