The cost of making an article is divided between materials, labour and overheads

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Question
The cost of making an article is divided between materials, labour and overheads in the ratio 3 : 4 : 1. If the materials cost Rs. 67.50, the cost of article is?
Options
A. Rs. 180
B. Rs. 122.50
C. Rs. 380
D. Rs. 540

Correct Answer

Rs. 180

Explanation

If material cost Rs. 3, the cost of the article is = Rs. ( 3 + 4 + 1) = Rs. 8
If material cost Rs. 67.50, the cost of the article = Rs. (8/3 x 67.5) = Rs. 180

Ratio and Proportion problems

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1.
The speed of three cars are in the ratio 3 : 4 : 5. The ratio between times taken by them to travel the same distance is?
Options
A. 3 : 4 : 5
B. 5 : 4 : 3
C. 12 : 15 : 20
D. 20 : 15 : 12

2.
Rs. 385 has been divided among A, B, C in such a way that A receives 2/9th of what B and C together receive. Then A's share is?
Options
A. Rs. 70
B. Rs. 77
C. Rs. 82.50
D. Rs. 85

3.
Rs. 1050 is divided among P, Q and R. The share of P is 2/5 of the combined share of Q and R. Thus P gets?
Options
A. Rs. 200
B. Rs. 300
C. Rs. 320
D. Rs. 420

4.
One-fourth of the boys and three-eight of the girls in a school participated in the annual sports. What proportional part of the total student population of the school participated in the annual sports?
Options
A. 4/12
B. 5/8
C. 8/12
D. Data inadequate

5.
The proportion of Zinc and Copper in a brass piece is 13 : 7. How much zinc will be there in 100 kg of such a piece?
Options
A. 20 kg
B. 35 kg
C. 55 kg
D. 65 kg

6.
A right cylinder and a right circular cone have the same radius and the same volume. The ratio of the height of the cylinder to that of the cone is?
Options
A. 3 : 5
B. 2 : 5
C. 3 : 1
D. 1 : 3

7.
If 3/4th of the employees in a super market are not college graduates What is the ratio of the number of college graduates to those who are not college graduates?
Options
A. 1 : 4
B. 3 : 1
C. 1 : 3
D. 3 : 4

8.
The strength of a school is 840. The ratio of the number of students talking English to the number of students not talking English is 4 : 3. How many of the students take English?
Options
A. 480
B. 360
C. 270
D. 540

9.
A bag contains 25 paise, 10 paise and 5 paise coins in the ratio 1 : 2 : 3 . If their total value is ? 60, then the number of 5 paise coins is?
Options
A. 10
B. 50
C. 30
D. 40

10.
Some money is divided amongst three workers A, B and C such that 5 times A's share is equal to 12 times B's share which is equal to 6 times C's share. The ratio between the shares of A, B and C is?
Options
A. 5 : 10 : 12
B. 12 : 5 : 10
C. 10 : 12 : 5
D. 5 : 12 : 10

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