20 Questions MCQ Test Quantitative Aptitude for SSC CGL - Percentage - MCQ 4
Percentage - MCQ 4 for SSC CGL 2023 is part of Quantitative Aptitude for SSC CGL preparation. The Percentage - MCQ 4 questions and answers have been
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In a library 5 percent books are in English, 10 percent of the remaining are in hindi and 15 percent of the remaining are in Sanskrit. The remaining 11628 books are in French. Then find the total number of books in the library.
Detailed Solution for Percentage - MCQ 4 - Question 1
Answer – c) 16000 Explanation : Let total books are A, then (95/100)*(90/100)*(85/100)*A = 11628
The population of a town is 15000. It increases by 10 percent in the first year and 20 percent in the second year. But in the third year it decreases by 10 percent. What will be the population after 3 years.
Detailed Solution for Percentage - MCQ 4 - Question 6
Answer – c) 17820 Explanation : 15000*(11/10)*(12/10)*(9/10) = 17820
One type of liquid contains 20 percent milk and in other liquid it contains 30 percent milk. If 4 parts of the first and 6 parts of the second are taken and formed a new liquid A. Find the percentage of milk in third liquid.
Detailed Solution for Percentage - MCQ 4 - Question 7
Answer – a) 26 Explanation : milk = 20 and water = 80 (in 1 liquid) milk = 30 and water = 70 (in 2 liquid) milk in final mixture = 20*4 + 30*6 = 260 so (260/1000)*100 = 26%
A man has 2000 rupees in his account two years ago. In the first year he deposited 20 percent of the amount in his account. In the next year he deposited 10 percent of the increased amount in the account. Find the total amount in the account of the person after 2 years.
Detailed Solution for Percentage - MCQ 4 - Question 8
Answer – b) 2640 Explanation : 2000 + 400 + 240 = 2640 (400 in first year and 240 is added in the second year)
The ratio between male and female in a city is 3: 7. The children percentage among the males and females of the city is 25 and 30 percent respectively. If the number of adult males in the city is 18000, then find the population of the town?
Detailed Solution for Percentage - MCQ 4 - Question 12
Answer – 2.80000 Explanation : Males and females are 3x and 7x respectively (3x)*75/100 = 18000. X = 8000 so total population = 10*8000 = 80000
Pankaj gave 50 percent of the amount to akash. Akash in turn gave two-fifth of the amount to venu. After paying a bill of 500 rupees, venu now have 8000 rupees left with him. Find the amount hold by pankaj initially.
Detailed Solution for Percentage - MCQ 4 - Question 13
Answer – 2. 42500 Explanation : Let pankaj have P amount initially [[(50/100)*P]*2/5 – 500] = 8000
P = 42500
Rakesh spent 30 percent of his monthly income on food items. Of the remaining amount he spent 60 percent on clothes and bills. Now he save fiveseventh of the remaining amount and the he saves 120000 yearly, then find his monthly income.
Detailed Solution for Percentage - MCQ 4 - Question 14
Answer – 2. 50000 Explanation : Let monthly income is P (70/100)*P*(40/100)*5/7 = 10000
P = 50000
Weight of A and B are in the ratio of 3:5. If the weight of A is increased by 20 percent and then the total weight becomes 132 kg with an increase of 10 percent. B weight is increased by what percent.
Detailed Solution for Percentage - MCQ 4 - Question 15
Answer – 3. 4% Explanation : Weight of A and B are 3x and 5x.
Initial weight before increase = (132*100)/110 = 120 8x = 120. X = 15 Initial weight of A and B are 45 and 75 kg respectively.
New weight of A = 54 so weight of B = 132 – 54 = 78.
So % increase = [(78-75)/75]*100 = 4 %
When the price of rice is increased by 25 percent, a family reduces its consumption such that the expenditure is only 10 percent more than before. If 40 kg of rice is consumed by family before, then find the new consumption of family.
Detailed Solution for Percentage - MCQ 4 - Question 16
Answer – 2.35.2 Explanation : Suppose initially price per kg of rice is 100 then their expenditure is 4000.
Now their expenditure is only increased by only 10% i.e – 4400.
Increased price of rice = 125.
So new consumption = 4400/125 = 35.2
The price of rice is increased by 20 percent and a person decrease his consumption by 15 percent, so his expenditure on rice is
Detailed Solution for Percentage - MCQ 4 - Question 17
Answer – 1.increase by 2 percent Explanation : Let initial price of rice – 100 and new price of rice – 120 suppose initial consumption is 100kg and new consumption is 85kg Initial expenditure = 10000 New expenditure = 10200 (200/10000)*100 = 2 percent increase
When the price of rice is increased by 30 percent, a family reduces its consumption such that the expenditure is only 20 percent more than before. If 50 kg of rice is consumed by family before, then find the new consumption of family (approx.)
Detailed Solution for Percentage - MCQ 4 - Question 19
Answer – 4.46kg Explanation : Suppose initially price per kg of rice is 100 then their expenditure is 5000.
Now their expenditure is only increased by only 20% i.e – 6000.
Increased price of rice = 130.
So new consumption = 6000/130 = 46.1
One type of liquid contains 20 percent of milk and second type of liquid contains 40 percent milk. If 4 part of the first and 6 part of the second are mix, then what is the percent of water in the mixture.
Detailed Solution for Percentage - MCQ 4 - Question 20
Answer – 3.68% Explanation : Do these type of question by taking 100 litre water = 80ltr and 60ltr in first and second mixture respectively now percent of water = [(80*4 + 60*6)/1000]100 = 68%
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