55. If Sureshrao had taken some amount on simple interest for 3 years, out of which some amount at p.c.p.a. for 10% and other amount for 15%. The total amount is Rs. 1400. Both rates interest is Rs. 510, then how much amount loan was taken at p.c.p.a. of 15% ?
please give step by step answer
please give step by step answer
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Verified answer
Answer:
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Step-by-step explanation:
this is a sample answer
Let the second amount =x
⇒
100
12000×10×1
+
100
x×20×1
=
100
(12000+x)×14×1
⇒
100
120000
+
100
20x
=
100
168000+14x
⇒120000+20x=168000+14x
⇒20x−14x=168000−120000
⇒6x=48000
⇒x=8000
Hence total amount invested=12000+8000=20000Rs.