Quantitative Aptitude is an important subject in various government exams, including SSC, Bank, Railway, and UPSC. It is a section that tests the candidate's ability to solve mathematical problems efficiently and accurately. The subject comprises various topics such as arithmetic, algebra, geometry, trigonometry, and data interpretation. Here are some reasons why Quantitative Aptitude is an important subject in government exams:
In conclusion, Quantitative Aptitude is an essential subject in government exams like SSC, Bank, Railway, and UPSC. It tests the candidate's mathematical skills, problem-solving abilities, time management skills, analytical abilities, and accuracy. Candidates must prepare thoroughly for this subject to increase their chances of selection for the job.
Q. Two-fifth of one-third of three-seventh of a number is 15. What is 40% of that number? एक संख्या के तीन-सातवें के एक-तिहाई का दो-पांचवां हिस्सा 15 है। उस संख्या का 40% क्या है?
Q. The population of of a town is 176000.If it increase at the rate of 5% per annum, what will be it’s population 2 years hence? एक कस्बे की जनसंख्या 176000 है। यदि इसमें 5% वार्षिक की दर से वृद्धि होती है, तो 2 वर्ष बाद इसकी जनसंख्या कितनी होगी?
Q. If 120 is reduced by $$x%$$, the same result will be obtained if 40 is increased by $$x%$$. Then $$x%$$ of 210 will be what percentage less than $$(x + 20)% of 180$$? यदि 120 को $$x%$$ कम किया जाए तो वही परिणाम प्राप्त होगा जो 40 को $$x%$$ बढ़ाने पर प्राप्त होता है | तब 210 का $$x%$$, 180 के $$(x + 20)%$$ से कितने प्रतिशत कम होगा?
$$120(1-x/100)=40(1+x/100)$$
$$3-(3x)/100=1+x/100$$
$$(4x)/100=2$$
$$x=50$$
$$x% of 210 = 210xx50/100=105$$
$$(x+20)% of 180 = 180xx70/100=126$$
Required percentage = $$(126-105)/126 xx 100 = 16 2/3%$$
Q. The shopkeeper allows two successive discounts of 15 % and 10 %. If the percentage of mark up price of an item is 20 % and the cost price of that item is Rs. 1500, then find the selling price of that item? दुकानदार 15% और 10% की लगातार दो छूट देता है। यदि किसी वस्तु के अंकित मूल्य का प्रतिशत 20% है और उस वस्तु का क्रय मूल्य रु. 1500 है, तो उस वस्तु का विक्रय मूल्य ज्ञात करें?
Q. Someone sold an item at a loss of 15%. If he sold it for Rs 30.60 more then he would get 9% profit. In order to get 10% profit, he has to sell the item in what amount? किसी व्यक्ति ने एक वस्तु को 15% की हानि पर बेचा | अगर वह उसे Rs. 30.60 अधिक पर बेचता तो उसे 9% का लाभ होता | 10% लाभ प्राप्त करने के लिए, उसे उस वस्तु को कितने में बेचना चाहिए था?
Let the CP = Rs. 100, then SP = Rs. 85
SP for 9% profit = Rs. 109
Difference in SP = 109 – 85 = 24
When difference = Rs. 24, then CP = Rs. 100
when difference = Rs. 30.6, then CP
$$= 100xx30.6/24=3060/24=127.5$$
to get 10% profit,
SP = $$127.5 xx 110/100 = 140.25$$
माना CP = रु. 100, तो SP = रु 85
9% लाभ के लिए SP = रु. 109
SP में अंतर = 109 – 85 = 24
जब अंतर = रु 24, तो CP = रु 100
जब अंतर = रु 30.6, फिर CP
$$= 100xx30.6/24=3060/24=127.5$$
10% लाभ प्राप्त करने के लिए,
SP = $$127.5 xx 110/100 = 140.25$$