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In a examination , the number of those w...

In a examination , the number of those who passed and the number of those who faild were in the ratio `25:4` .If five more had appeared and the number of failures were 2 less than earlier , the ratio of students who failed would have been `22:3` . Find the total number who appeared at the examination .

A

145

B

150

C

155

D

180

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The correct Answer is:
A
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In an examination, the number of those who passed and the number of those who failed were in the ratio 25 : 4. If 5 more had appeared and the number of failures were 2 less than earlier, the ratio of students who passed to the number of students who failed would have been 22 : 3. Find the total number who appeared at the examination.

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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 : एक परीक्षा में, सफलता और असफलता का जनुपात 5 : 2 था | यदि असफल अभ्यर्थी की संख्या 14 अधिक होती , तो सफलता और असफलता का अनुपात 9 : 5 होता | इस परीक्षा में कुल कितने अभ्यर्थी शामिल हुए थे ?

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: एक परीक्षा में, सफलता का असफलता से अनुपात 5:2 था| अगर असफलताओं की संख्या 11 अधिक थी, तो सफलता का असफलता से अनुपात 9:5 होता परीक्षा में बैठने वाले उम्मीदवारों की कुल संख्या थीः

S CHAND IIT JEE FOUNDATION-RATIO AND PROPORTION -QUESTION BANK -15
  1. An amount of money is to be divided among P, Q and R in the ratio 4:7:...

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  2. The ratio of A to B is 4:5 and that of B to C is 2:3. If A equals 800,...

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  3. In a examination , the number of those who passed and the number of th...

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  4. The incomes of A and B are in the ratio 5:3. The expenses of A, B and ...

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  5. The speeds of three cars are in the ratio 2:3 : 4. What is the ratio b...

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  6. The sum of the squares of three numbers which are in the ratio 2:3:4 i...

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  7. 2430 are distributed among three persons so that their shares be dimin...

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  8. Ex. 5: Three persons A, B, C whose salariestogether amount to 14,400, ...

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  9. A pot contains 81 litres of pure milk. 1/3 of the milk is replaced by ...

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  10. A mixture contains milk and water in the ratio 5:1. On adding 5 litres...

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  11. If 2 kg of metal of which 1/3 is zinc and rest copper be mixed with 3 ...

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  12. The number of employees in companies A, B and C are in the ratio 3:2: ...

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  13. The ratio of a 2-digit number to the sum of its digits is 7: 1. If the...

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  14. The ratio of number of boys to that of girls in a group becomes 2 :...

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  15. A grocer buys kinds of rice X and Y, one (X) at the rate of a per kg a...

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  16. The ratio of the first and second class train fares be tween two stati...

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  17. Two liquids A and B are in the ratio 5:1 in container 1 and 1:3 in con...

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  18. If a : b = 3 : 4 and b : c = 8 : 9, then a : c = ?

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  19. If (1)/(x) : (1)/(y) : (1)/(z) = 2 : 3 : 5 then determine x : y :z

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  20. Two numbers are in the ratio 1 1/2:2 2/3dot When each of these i...

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