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objective Ques (11 results)
1)

In what ratio, sugar costing Rs.60 per kg be mixed with sugar costing Rs.42 per kg such that by selling the mixture at Rs.56 per kg there is a gain of 12%?

SSC CGL 2019
A)

5 : 6

B)

8 : 9

C)

4 : 5

D)

5 : 7

2)

The ratios of copper to zinc in alloys A and B are 3 : 4 and 5 : 9, respectively. A and B are taken in the ratio 2 : 3 and melted to form a new alloy C. What is the ratio of copper to zine in C?

SSC CGL 2019
A)

8 : 13

B)

3 : 5

C)

9 : 11

D)

27 : 43

3)

A vessel contains a 32 litre solution of acid and water in which the ratio of acid and water is 5 : 3, If 12 litres of the solution are taken out and l\(7\frac{1}{2}\)itres of water are added to it, then what is the ratio of acid and water in the resulting solution?

SSC CGL 2019
A)

4 : 7

B)

5 : 6

C)

4 : 9

D)

8 : 11

4)

How many kg of salt costing ₹28 per kg must be mixed with 6.6 kg of salt costing ₹16 per kg, so that selling the mixture at ₹29.90, there is a gain of 15%?

SSC CGL 2019
A)

33

B)

31

C)

35

D)

32

5)

40 litres of 60% concentration of acid solution is added to 35 litres of 80% concentration of acid solution. What is the concentration of acid in the new solution?

SSC CGL 2019
A)

66%

B)

\(66\frac{2}{3}\)%

C)

\(69\frac{1}{3}\)%

D)

69%

6)

Alloy A contains copper and zine in the ratio of 4 : 3 and alloy B contains copper and zine in the ratio of 5: 2. A and B are taken in the ratio of 5 : 6 and melted to form a new alloy. The percentage of zinc in the new alloy is closest to:

SSC CGL 2019
A)

54

B)

34.2

C)

36.8

D)

35

7)

25 litres of a mixture contains 30%of spirit and rest water. If 5 litres of water be mixed in it, the percentage of spirit in the new mixture is :

SSC CGL 2020
A)

\(12{1\over2}\)%

B)

\(33{1\over3}\)%

C)

25%

D)

45%

8)

A solution contains acid and water in the ratio of 4 : 5. If 20% of the solution is replaced by water, then what will be the ratio of acid and water in the new solution?

SSC CHSL 2021
A)

8 : 15

B)

5 : 17

C)

10 : 7

D)

16 : 29

9)

A shopkeeper mixes three varieties of tea costing Rs 60 per kg, Rs80 per kg, and Rs120 per kg in the ratio 5 : 8 : 7. At what price (in Rs) per kg should he sell the tea mixture to earn a 25% profit?

SSC Selection Post Matric 2022
A)

86.67

B)

100.33

C)

111.25

D)

104.50

10)

A person bought 20 kg of oranges at Rs. 64/kg, 25 kg of oranges at Rs. 56/kg and Rs. 35 kg of oranges at Rs. 60/kg. He mixed the three varieties. If he sells the whole lot at Rs. 63.75/kg, then his profit percentage is: (correct to the nearest integer)

SSC Selection Post Matric 2022
A)

18%

B)

 15%

C)

12%

D)

13%

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