RATIO MCQ SET 7
1. If (x – 2y + 8z) : (y – 3z + 4w) : (4x + 5z – 7w) = 3 : 4 : 7 then find 6x + 2y – 17w/w = ?
(a) 5
(b) 6
(c) 7
(d) 8
Answer: A
2. The ratio of the number of employees (male or female) in offices A and B is 2 : 3 . The ratio of the female employees in A and B is 1 : 2ย , and the ratio of the female employees in A to the total employees in A is 1 : 3 . What is the ratio of the male employee in A and B ?
(a) 6 : 7
(b) 5 : 6
(c) 4 : 5
(d) 3 : 2
Answer: C
3. On the whole surface of earth the ratio of land and water is 3 : 5 . The land and water in northern hemisphere is7 : 9 . Then what is the ratio of land and water in southern hemisphere ?
(a) 6 : 7
(b) 5 : 11
(c) 9 : 2
(d) 3 : 2
Answer: B
4. The expenses of a family on wheat , vegetables an oil are in the ratio of 12 : 8 : 5 . The prices of these items increased by 50% , 25% and 40% , respectively . The total expenses of the family on these items increased by :
(a) 40%
(b) 38%
(c) 44%
(d) 42%
Answer: A
5. Salaries of B , C , D and E are in the ratio of 2 : 3 : 4 : 5 respectively . Their salaries are increased by 20 percent , 30 percent , 40 percent and 50 percentย respectively . If the increased salary of D is Rs.560 , then what is the sum of the original salaries of B , C , D and E ?
(a) Rs.1260
(b)Rs. 1820
(c) Rs.1560
(d)Rs.1400
Answer: D
6. The price of a semi precious stone weighing 48g , is Rs.230400 . It is broken into two pieces whose weight are in the ratio of 5 : 7 . If the price is proportional to the square of the weight , then the loss (in R) incurred , is :
(a) 112000
(b) 40000
(c) 118400
(d) 75400
Answer: A
7. The value of a stone is proportional to the square of its weight . A stone worth Rs. 120000 is broken into two pieces in the ratio of 2 : 3 . What is the total price of the two small small stones ?
(a) Rs.68,400
(b) Rs.62,400
(c) Rs.66,500
(d) Rs.65,400
ย Answer: B
8. The cost of a diamond is directly proportional to the square of its weight . The cost of a 14 gm diamond is Rs.2560 . This diamond got broken down into two pieces in the ratio of 5:9 . How much loss percent is incurred due to this breakage ? (Correct to two decimal places)
(a) 53.47%
(b) 49.71%
(c) 55.41%
(d) 45.92%
Answer: D
9. In an examination , the success to failure ratio was 5 : 2 . Had the number of failures been 14 more , then the success to failure ratio would have been 9 : 5 . The total number of candidates who appeared for the examination was :
(a) 121
(b) 196
(c) 126
(d) 128
Answer: B
10. In an examination , the number of students who passed and the number of students who failed were in the ratio of 25 : 4 . if one more student had appeared and passed and the number of failed students was 3 less than earlier , the ratio of passed students to failed students would have become 22 : 3 . What is the difference between the number of students who , initially , passed the examination and the number of students who failed the examination ?
(a) 132
(b) 126
(c) 174
(d) 150
Answer: B
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