RRB Assistant Loco Pilot and Technician Model Paper 7 with solutions

Question : 7 of 100

Marks: +1, -0

X borrowed some money from a source at 8% simple interest and lent it to Y at 12% simple interest on the same day and gained ₹ 4,800 after 3 years. The amount X borrowed, in ₹ is

42,000
60,000
1,20,000
40,000

Validate

Solution:

(d) Let X borrow ₹ P
He has to return total amount,
A = P +

{P×8×3}/100

Total amount x get from y,
A' = P +

{P×12×3}/100

According to question
A' – A = 4800

( { \P } + { 36 { P } }/ { 100 } ) - ( { P } + { 24 { P } } /{ 100 } )

{ 12 { P } }/ { 100 } = 4800

⇒

{ P } = { 4800 × 100 }/ { 12 }

= 40,000

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