Q.31 x and y are in the same proportion as (10 – x) and (15 – y), if x = 12, then y is equal to……
(A) 18
(B) 12.2
(C) 8
(D) 2.5
Q.32 At a certain party, first the ratio of boys to girls was 5 : 3. If after 10 boys left, the ratio becomes 1 : 1. How may people were originally at the party?
(A) 48
(B) 32
(C) 64
(D) 40
Q.33 A cylinder, a hemisphere and a cone are on the same base and have the same height, the area of the curved surface are in the ratio of …….
(A) 1 : 1 : 2
(B) Root 2 : Root 2 : 2
(C) Root 2 : Root 2 : 1
(D) 1 : 1 : Root 2
Q.34 Square A is formed with the diagonal of square B as its sides and square. B has the diagonal of square C as its side? Find the ratio of the area of square C to square A?
(A) 1 : 4
(B) 1 : 2
(C) 1 : Ö2
(D) 1 : 2Ö2
Q.35 Two regular polygons have the number of their sides in the ratio 2 : 1 and their interior angle in the ratio 5 : 4. The number of sides of the two polygons are……
(A) 10, 5
(B) 8, 4
(C) 12, 6
(D) 6, 3
Q.36 The ratio of the prices of the two prices of two houses A and B was 4 : 5 last year. This year, the price of A increased by 25% and that of B by Rs. 50,000. If their prices now are in the ratio 9 : 10, the price of A last year was…..
(A) Rs. 3,60,000
(B) Rs. 4,50,000
(C) Rs. 4,80,000
(D) Rs. 5,00,000
Q.37 The wages of labourers in a factory increased in the ratio 22 : 25 and there was a reduction in the number of laboures in the ratio 15 : 11. Find the original wage bill if the present bill is Rs. 5000?
(A) Rs. 6000
(B) Rs. 3000
(C) Rs. 4800
(D) Rs. 4500
Q. 38 Two casks of liquid contain liquid of mixture of liquids A and B. In the first flask A:B::7:3 and in the second cask A:B::3:1. In what ratio must the mixtures from the two casks be taken to give a mixture in which A:B::11:4?
(A) 1 : 2
(B) 1 : 3
(C) 2 : 3
(D) 2 : 1
Q. 39 If a : b : c :: 2 : 4 : 3, find the ratio of the square of the average to the average of their square.
(A) 23 : 25
(B) 8 : 3
(C) 25 : 27
(D) 27 : 29
Q.40 Five years back two friends age was in the ratio 5 : 1 and 30 years hence the ratio would be 10 : 9. Find the age of the younger friend five years hence.
(A) 11 years
(B) 12 years
(C) 14 years
(D) 15 years
Q.21 If A : B = 5 : 7 and B : C = 9 : 11, then A : C?
(A) 9 : 11
(B) 45 : 77
(C) 45 : 66
(D) 39 : 77
Q.22 The mean proportion between 9 and 25 is……
(A) 10
(B) 12
(C) 15
(D) 17
Q.23 The third proportion to 12 and 30 is…..
(A) 40
(B) 45
(C) 50
(D) 75
Q.24 The ratio of milk and water in 66 kg of adulterated milk is 5 : 1. Water is added to it to make the ratio 5 : 3. The quantitiy of water added is……
(A) 12
(B) 32
(C) 32
(D) 52
Q.25 Ratio of speed of three cars is 2 : 3 : 4. The ratio of time taken by these cars to travel the same distance is……
(A) 2 : 3 : 4
(B) 3 : 6 : 4
(C) 6 : 4 : 3
(D) 4 : 3 : 6
Q.26 A cup contains milk and water in the ratio of 3 : 1. How much mixture should be taken out and water added to make the ratio 1 : 1?
(A) 1/3
(B) 1/4
(C) ½
(D) 1/5
Q.27 A can contains a mixture of two liquid A and B in proportion 7 : 5 . When 9 liters of mixture was drawn off and the can was filled with B, the proportion of A and B becomes 1 : 2. How many liters of mixtures was contained by the can initially?
(A) 15
(B) 21
(C) 36
(D) 25
Q.28 Five apples plus four pears costs as much as three apples plus seven pears. What is the ratio of the cost of 1 pear and cost of 1 apple?
(A) 2 : 3
(B) 3 : 4
(C) 3 : 1
(D) 4 : 3
Q.29 The ratio of the perimeter of an equilateral triangle having and altitude equal to the radius of a circle, to the perimeter of an equilateral triangle inscribed in a circle is…….
(A) 1 : 2
(B) 1 : 3
(C) 1 : Ö3
(D) Ö3 : 2
Q.30 The areas of two triangles of equal height are in the ratio of 7 : 12. If the base of the smaller trangle is 40 cm, then the base of the other is……
(A) 23.33
(B) 21 cm
(C) 68.75 cm
(D) 32.33 cm
Q.31 x and y are in the same proportion as (10 – x) and (15 – y), if x = 12, then y is equal to……
(A) 18
(B) 12.2
(C) 8
(D) 2.5
Q.32 At a certain party, first the ratio of boys to girls was 5 : 3. If after 10 boys left, the ratio becomes 1 : 1. How may people were originally at the party?
(A) 48
(B) 32
(C) 64
(D) 40
To know more about SSC (CGL): https://www.examsbook.com/ssc-cgl-exam-2017-2018
Q.33 A cylinder, a hemisphere and a cone are on the same base and have the same height, the area of the curved surface are in the ratio of …….
(A) 1 : 1 : Ö2
(B) srqt2 : srqt2 : 2
(C) Ö2 : Ö2 : 1
(D) 1 : 1 : Ö2
Q.34 Square A is formed with the diagonal of square B as its sides and square. B has the diagonal of square C as its side? Find the ratio of the area of square C to square A?
(A) 1 : 4
(B) 1 : 2
(C) 1 : Ö2
(D) 1 : 2Ö2
Q.35 Two regular polygons have the number of their sides in the ratio 2 : 1 and their interior angle in the ratio 5 : 4. The number of sides of the two polygons are……
(A) 10, 5
(B) 8, 4
(C) 12, 6
(D) 6, 3
Q.36 The ratio of the prices of the two prices of two houses A and B was 4 : 5 last year. This year, the price of A increased by 25% and that of B by Rs. 50,000. If their prices now are in the ratio 9 : 10, the price of A last year was…..
(A) Rs. 3,60,000
(B) Rs. 4,50,000
(C) Rs. 4,80,000
(D) Rs. 5,00,000
Q.37 The wages of labourers in a factory increased in the ratio 22 : 25 and there was a reduction in the number of laboures in the ratio 15 : 11. Find the original wage bill if the present bill is Rs. 5000?
(A) Rs. 6000
(B) Rs. 3000
(C) Rs. 4800
(D) Rs. 4500
Q. 38 Two casks of liquid contain liquid of mixture of liquids A and B. In the first flask A:B::7:3 and in the second cask A:B::3:1. In what ratio must the mixtures from the two casks be taken to give a mixture in which A:B::11:4?
(A) 1 : 2
(B) 1 : 3
(C) 2 : 3
(D) 2 : 1
Q. 39 If a : b : c :: 2 : 4 : 3, find the ratio of the square of the average to the average of their square.
(A) 23 : 25
(B) 8 : 3
(C) 25 : 27
(D) 27 : 29
Q.40 Five years back two friends age was in the ratio 5 : 1 and 30 years hence the ratio would be 10 : 9. Find the age of the younger friend five years hence.
(A) 11 years
(B) 12 years
(C) 14 years
(D) 15 years
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