Mathematical Series Questions for Competitive Exams
(A) 11
(B) 10
(C) 21
(D) 23
Correct Answer : C
(A) 3 : 1
(B) 4 : 2
(C) 5 : 3
(D) 2 : 3
Correct Answer : A
Alcohol and water in two vessels A and B are in the ratio 5:3 and 5:4 respectively. In what ratio, the liquid of in both the vessels be mixed to obtain a new mixture in vessel C in the ratio 7:5?
(A) 2:3
(B) 3:2
(C) 3:5
(D) 2:5
Correct Answer : A
A mixture of 40 liters of milk and water contains 30% water. How much milk should be added to this mixture so that the new mixture contains 80% milk?
(A) 20
(B) 10
(C) 15
(D) 35
(E) 25
Correct Answer : A
An alloy contains zinc, copper and tin in the ratio 2:3:1 and an other contains copper, tin and lead in the ratio 5:4:3. If equal weights of both alloys are melted together to form a third alloy, then the weight of lead per kg in the new alloy will be.
(A) ½ kg
(B) 1/8 kg
(C) 3/14 kg
(D) 7/9 kg
Correct Answer : B
(A) Rs.200
(B) Rs.208
(C) Rs.212
(D) Rs.220
(E) None of these
Correct Answer : B
(A) Rs 125
(B) Rs 126
(C) Rs 124
(D) Rs 127
(E) None of these
Correct Answer : C
(A) Rs 1,896
(B) Rs.2012.48
(C) Rs. 1952.88
(D) Rs.1,956
(E) None of these
Correct Answer : C
(A) Rs. 16,537.50
(B) Rs.16,500
(C) Rs. 16,525.50
(D) Rs.18,150
(E) None of these
Correct Answer : A
(A) Rs 610.51
(B) Rs 559.45
(C) Rs 665.50
(D) Rs 665.51
(E) None of these
Correct Answer : A
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Vikram Singh
Providing knowledgable questions of Reasoning and Aptitude for the competitive exams.
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