RRB RPF RPSF SI and CONS Model Papers 3 with solutions

Question : 3 of 120

Marks: +1, -0

A shopkeeper bought 30 kg of wheat at the rate of ₹45 per kg. He sold forty per cent of the total quantity at the rate of ₹ 50 per kg. Approximately, at what price per kg should he sell the remaining quantity to make 25 percent overall profit?

₹54
₹52
₹ 50
₹60

Validate

Solution:

(d) CP of wheat = 30 × 45 =₹1350
40% of 30 kg = 12 kg
SP of 12 kg = 12 × 50 =₹600
For 25% profit, total SP of all the wheat is

=1350× { 125 }/ { 100 } = 1350 × { 5 }/ { 4 }

= ₹ { 6750 }/ { 4 } = ₹ 1687.5

Remaining wheat (30 – 12) = 18 kg.
Rate of remaining wheat

= { 1087.5 }/ { 18 }≈₹ 60

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