# SSC CGL Math Quiz set 1

Posted by admin at March 5, 2019

#### If A exceeds B by 40%, B is less than C by 20%, then A : C is,: यदि A, B से 40% अधिक है, B, C से 20% कम है, तो A:C है:

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Let C = 100 So B = 20% less than C or 80% of C = 80/100×100 = 80 And A exceeds B by 40% So A = B + 40% of B = 80 + 80 × 40/100 = 112 So A : C = A/C = 112/100 = 28/25

#### Price of sugar rises by 20%. By how much percent should the consumption of sugar be reduced so that the expendi­ture does not change? चीनी की कीमत 20% बढ़ जाती है। चीनी की खपत कितने प्रतिशत कम होनी चाहिए ताकि खर्च में बदलाव न हो?

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Let original price of sugar=Rs.100 Increased price=20/100×100+20=Rs.120 Difference=Rs.20 Required %age=20/120×100=16.6%

#### In a school 70% of the students are girls. The number of boys are 510. Then the total number of students in the school is: एक स्कूल में 70% छात्र लड़कियां हैं। लड़कों की संख्या 510 है। फिर स्कूल में कुल छात्रों की संख्या है

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70% are student girl so,30% student are boys so, 30%=510 so, total no. of students in school =100% 30%=510 so,100%=510×100/30=1700 so, total no. of students in school is 1700

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#### A sum of money becomes 7/6 of itself in 3 years at a certain rate of simple interest. The rate per annum is. साधारण ब्याज की एक निश्चित दर पर 3 वर्षों में स्वयं का 7/6 पैसा बनता है। प्रति वर्ष की दर है

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sum = x. amount =7x/6. S.I. =(7x/6 – x) = x/6 ; time = 3 years Rate =[ (100 * x) / (x * 6 * 3)]% = 5.5%

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#### Applied to a bill for Rs. 1,00,000 the difference between a discount of 40% and two successive discounts of 36% and 4% is. 1,00,000 रुपये के बिल के लिए आवेदन किया। 40% की छूट और, 36% और 4% के दो क्रमिक छूट के बीच का अंतर है

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SSC CGL Math Quiz set 1
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