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SSC Quiz : Quantitative Aptitude | 28 - 07 - 17

Mahendra Guru
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17


1. How many numbers less than 1000 are multiples of both of 10 and 13 ? 

कितने संख्या 1000 की तुलना में कम से कम 10 और 13 के दोनों के गुणनफल हैं? 

(A)5 (B) 7 (C) 8 (D) 9 

EXP..(B) 
10 and 13 are co-prime numbers. Product of 10 and 13 = 10SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
1000SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17

So answer is 7.

10 और 13 सह-प्रमुख संख्या है। 10 और 13 के उत्पाद = 10 × 13 = 130 
1,000 ÷ 13 = 7 (भागफल) +90 (शेष) 1,000 ÷ 13 = 7 (भागफल) +90 (शेष)
तो जवाब 7 है। 


2. Mohan gets 4 marks for each correct sum and losses 1 marks for each wrong sum. He attempted 30 sum and obtains 50 marks. The number of sums solved correctly is? 

मोहन को प्रत्येक सही प्रश्न के लिए 4 अंक और प्रत्येक गलत प्रश्न के लिए 1 अंक काट लिए जाता है। वह 30 प्रश्न करता है और 50 अंक प्राप्त करता है। सही प्रश्नो की संख्या क्या है? 

(A)20 (B) 15 (C) 16 (d) 18 

EXP..(C)

Let he attempted x sums correctly. 
Then his total marks = SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
माना की उसने x प्रश्न सही किये 
तो उसके कुल अंक = SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
3. If SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17operation such that for positive integers a and b , a SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17= - a + b - (-2), then the value of 4 SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17is : 

(A)1 (B) -1 C) +3 (D) -3 

EXP..(A) 
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17= - a + b - (-2), 
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17= -4 +3 – (-2)
-1 + 2 = 1.


SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17= - a + b - (-2), 
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17= -4 +3 – (-2)
-1 + 2 = 1.

4. If SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17+SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17

+

1 (B) 3 (C) SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17 (D) SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17


EXP..(D)
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 172 + 2 + SSC Quiz : Quantitative Aptitude  | 28 - 07 - 172 + 2 = 4
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 172 + SSC Quiz : Quantitative Aptitude  | 28 - 07 - 172 = 0
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17.

SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 172 + 2 + SSC Quiz : Quantitative Aptitude  | 28 - 07 - 172 + 2 = 4
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 172 + SSC Quiz : Quantitative Aptitude  | 28 - 07 - 172 = 0
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17

5. If SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17 -1/2 then the value of SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17

SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17 -1/2 SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
2 (B) -SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17 (C) SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17 (D) SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17

EXP..(A) 
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17 -1/2 
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17 = SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17 SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17

SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17 -1/2 
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17 = SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
 SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
6. If a sphere of radius r is divided into four identical parts., then the total surface area of the four parts is : 

यदि एक गोले को चार बराबर भाग में बांटा जाता है तो चारो गोलों का कुल छेत्रफल ज्ञात कीजिये 

SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17 (B) SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17 SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17

EXP..(c )
Required total surface area = SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17

अभीष्ट छेत्रफल = SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
7. SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17then the value of SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17 is 

SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17तो मान ज्ञात कीजिये SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17 is 

(A)1 (B) 41 (C) 441 (D) 400 


EXP..(A)
Expression = SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17

समीकरण = SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17


8. If SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17

 SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17

(A)4 (B) 5 (C) 7 (D) 8 

EXP..(C )
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
Dividing numerator and denominator by x, 
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17


SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
9. If SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17+SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17

 SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17+SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17

(A)1 (B) -1 (C) 2 (D) 0 

EXP..(A) 
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17+SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
= 1

SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17+SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
= 1

10. In a mixture of three varities of pulses , the ratio of their weight is 4 : 5 : 8. If 5 kg of pulses of the first variety, 10 kg of the second variety and some quantity of pulses of the third variety are added to the mixture , the ratio of the weights of three varieties of pulses becomes as 5 : 7 : 9 . in the final mixture , find the quantity of third variety of pulses was : ? 

तीन प्रकार की दाले जिनके भारो का अनुपात 4 : 5 : 8. यदि 5 किलोग्राम पहली प्रकार की दाल , 10 किलोग्राम की दूसरी दाल और कुछ मात्र की तीसरी दाल मिले जाती है तो भार का अनुपात 5 : 7 : 9 . हो जाता है तीसरी मिलाये गए दाल की मात्रा ज्ञात कीजिये? 

(A)42 (B) 48 (C) 40 (D) 45 

EXP..(D) 
Let the ratio of initial quantity be x i.e SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17. Let a be quantity of extra pulses. So according to question, 
So, SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
On solving (i) and (ii) we get SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
So a = 45 kg

प्रारंभिक मात्रा के अनुपात i.e SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17 a है
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
So, SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17
हल करने पर (i) और (ii) we get SSC Quiz : Quantitative Aptitude  | 28 - 07 - 17औरSSC Quiz : Quantitative Aptitude  | 28 - 07 - 17

तो a = 45 kg






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