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- Question
- The ratio of the number of student appearing for examination in the year 1998 in the states A, B and C was 3 : 5 : 6. Next year if the number of students in these states increase by 20%, 10% and 20% respectively, the ratio in states A and C would be 1 : 2. What was the number of students who appeared for the examination in the state A in 1999?
Options- A. 7200
- B. 6000
- C. 7500
- D. Data inadequate
- Correct Answer
- Data inadequate
ExplanationLet the number of students appearing for examination in the year 1998 in the states A, B and C be 3N, 5N,and 6N respectively.
According to the question, {(3N x 120)/100} / {(6N x 110)/100} = 1/2
Its true for every N so, The data is inadequate. - 1. The ratio of males and females in a city is 7:8 and the percentage of children among males and females is 25% and 20% respectively.If the number of adult females in the city is 156800, what is the total population?
Options- A. 245000
- B. 367500
- C. 196000
- D. 171500 Discuss
- 2. In a class of 60 children 30% children can speak only English, 20% Hindi and English both and the rest of the children can speak only Hindi. How many children can speak Hindi?
Options- A. 42
- B. 36
- C. 30
- D. 48 Discuss
- 3. Rajesh solved 80 percent of the questions in an examination correctly, out of 41 questions solved by Rajesh 37 questions are correct and of the remaining questions out of 8 questions, 5 questions have been solved by Rajesh correctly then find the total number of question asked in the examination?
Options- A. 75
- B. 65
- C. 60
- D. Can't be determined Discuss
- 4. Ashok gave 40 per cent of the amount he had to Jayant. Jayant in turn gave one-fourth of what he receive from Ashok to Prakash. After paying Rs. 200 to the taxi driver out of the amount he got from Jayant,Prakash now has Rs. 600 left with him.How much amount did Ashok have?
Options- A. 1200
- B. 4000
- C. 8000
- D. Data inadequate Discuss
- 5. Pradeep spends 40 percent of his monthly income on food items and 50 percent of the remaining, on cloths and conveyance. He saves one-third of the remaining amount after spending on food, clothes and conveyance. If he saves Rs.19,200 every year, what is his monthly income?
Options- A. Rs. 24000
- B. Rs. 12000
- C. Rs. 16000
- D. Rs. 20000 Discuss
- 6. After spending 40% in machinery, 25% in building,15% in raw material and 5% on furniture. hari lal has a balance of Rs. 1305. The money with him was?
Options- A. Rs. 6500
- B. Rs. 7225
- C. Rs. 8700
- D. Rs. 1390 Discuss
- 7. In mathematics exam. a student scored 30% marks in the first paper out of a total of 180. How much should he score in second paper out of a total of 150, If he is to get an overall average of at least 50%?
Options- A. 74%
- B. 76%
- C. 70%
- D. 80% Discuss
- 8. In a examination it is required to get 36% of maximum marks to pass. A student got 113 marks and declared failed by 85 marks. The maximum marks are?
Options- A. 500
- B. 550
- C. 640
- D. 1008 Discuss
- 9. From the salary of an officer 10% deducted as house rent,15% of the rest he spends on children's eduction and 10% of the balance, he spends on clothes. After this expenditure he is left with Rs. 1377. His salary is?
Options- A. Rs. 2000
- B. Rs. 2040
- C. Rs. 2100
- D. Rs. 2200 Discuss
- 10. The price of cooking oil has increased by 25%. The percentage of reduction that a family should effect in the use of cooking oil so as not to increased the expenditure on this account is?
Options- A. 15%
- B. 20%
- C. 25%
- D. 30% Discuss
Percentage problems
Search Results
Correct Answer: 367500
Explanation:
Number of females = 156800 x 100/80 = 196000
? Number of males = 7/8 x 196000 = 171500
Total population = 196000 + 171500 = 367500
Correct Answer: 42
Explanation:
Number of student who speak only English =30% of 60 = 18
Number of student who speak Hindi and English =20% of 60 =12
?Number of student who speak only Hindi = (60 - 30) = 30
?Number of student who speak Hindi = 30 + 12 = 42
Correct Answer: 65
Explanation:
Suppose there are 8y questions were asked apart from the 41 question.Then
37 + 5y/41 + 8y = 80% = 4/5
? 185 + 25y = 164 + 32y
? 7y = 21
? y = 3
? Total no. of questions = 41 + 8 x 3 = 65.
Correct Answer: 8000
Explanation:
? J = 40% of A =2A/5
? P = 1/4 x 2A/5 = A/10
? A/10 - 200 = 600
? A/10 = 800
? A = Rs. 8000
Correct Answer: Rs. 16000
Explanation:
From question,
Food items = 40%
Clothes + conveyance = 50% of 60% = 30%
? Remaining amount = (100 - 40 - 30)% = 30%
? 1/3 of 30% = 19200
? 10% = 19200
? 100% = Rs. 192000
So his monthly income = 192000 / 12 = 16000
Correct Answer: Rs. 8700
Explanation:
Let the Hari Lal was having R rupees in beginning.
? R - [40% of R + 25% of R + 15% of R + 5% of R] = 1305
? R - 85% of R = 1305
? 15% of R = 1305
? R = (1305 x 100)/15 = 8700
Correct Answer: 74%
Explanation:
? 30% of 180 + N% of 150 = 50% of (180 + 150)
? 54 + (N x 150)/100 = 165
? 3N/2 = 111
? N = (111 x 2) / 3 =74
Correct Answer: 550
Explanation:
? 36% of N = (113 + 85)
? N = (100 x 198) / 36 = 550
Correct Answer: Rs. 2000
Explanation:
Suppose that his salary = Rs. 100
House Rent = Rs.10
so, Balance = Rs. 90
Expenditure on education = Rs. (15 x 90) / 100= Rs.13.50
Balance =Rs.76.50
Expenditure on clothes = Rs.(10 x 76.50) / 100 = Rs. 7.65
Balance now = Rs.68.85
If balance is Rs. 68.85, salary =Rs. 100
If balance is Rs. 1377, salary = Rs.(100/68.85) x 1377 = Rs. 2000
Correct Answer: 20%
Explanation:
Reduction in consumption = { m / (100 + m)} x 100%
= (25/125) x 100%
= 20%
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