RRB Non Technical Model Papers 9 with solutions

Question : 71 of 100

Marks: +1, -0

He sells a car to his friend at 10% loss. If friend sells it at 20% profit in ₹54,000, then what's the real value of the car ?

Solution:

(3) Let the actual cost of car= x
∴ From question,
(100 + 20)% of (100 – 10)% of x = 54000

⇒ x ×90/100×120/100= 54000

∴x = 54000×{100× 100}/{90 ×120}

= ₹ 50000

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