Wipro Company Numerical Ability Alligation or Mixture

Gopal purchased 35 kg of rice at the rate of Rs 9.50 per kg and 30 kg at the rate of Rs 10.50 per kg. He mixed the two. Approximately, at what price per kg should he sell the mixture to make 35 % profit in the transaction ?

a. Rs 12
b. Rs 12.50
c. Rs 13
d. Rs 13.50

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Wipro Other Question
A producer of tea blends two varieties of tea from two tea gardens one costing Rs 18 per kg and another Rs 20 per kg in the ratio 5 : 3. If he sells the blended variety at Rs 21 per kg, then his gain percent is

a. 10
b. 12
c. 19
d. 22 Pure ghee costs Rs 100 per kg. After adulterating it with vegetable oil costing Rs 50 per kg, a shopkeeper sells the mixture at the rate of Rs 96 per kg, thereby making a profit of 20 %. In what ratio does he mix the two ?

a. 1 : 2
b. 3 : 2
c. 3 : 1
d. None of these