
As SSC CGL notification is out and candidates have started their preparation for this exam. Mahendras also has started special quizzes for this examination. This series of the quizzes is based on the latest pattern of the SSC CGL examination. Regular practice of the questions included in the quizzes will boost up your preparations and it will be very helpful in scoring good marks in the examination.
Q. 1. The average of twelve numbers is 42. The average of the last five numbers is 40, and that of the first four numbers is 44. The 6th number is 6 less than the fifth and 5 less than the 7th number. The average of the 5th and the 7th numbers is:
рдмाрд░рд╣ рд╕ंрдЦ्рдпाрдУं рдХा рдФрд╕рдд 42 рд╣ै। рдЕंрддिрдо рдкाँрдЪ рд╕ंрдЦ्рдпाрдУं рдХा рдФрд╕рдд 40 рд╣ै, рдФрд░ рдкрд╣рд▓ी рдЪाрд░ рд╕ंрдЦ्рдпाрдУं рдХा рдФрд╕рдд 44 рд╣ै । 6 рд╡ीं рд╕ंрдЦ्рдпा 5 рд╡ीं рд╕े 6 рдХрдо рдФрд░ 7 рд╡ीं рд╕ंрдЦ्рдпा рд╕े 5 рдХрдо рд╣ै। 5 рд╡ीं рдФрд░ 7 рд╡ीं рд╕ंрдЦ्рдпाрдУं рдХा рдФрд╕рдд рд╣ै:
(A) 44
(B) 43.5
(C) 43
(D) 44.5
Q. 2. An amount invested at simple interest gives Rs.2550 interest at the rate of 17% per annum in 3 years. What is the principal (in Rs.)
рд╕ाрдзाрд░рдг рдм्рдпाрдЬ рдкрд░ рдиिрд╡ेрд╢ рдХी рдЧрдИ рд░ाрд╢ि 3 рд╡рд░्рд╖ों рдоें рдк्рд░рддि рд╡рд░्рд╖ 17% рдХी рджрд░ рд╕े 2550 рд░ुрдкрдпे рдХा рдм्рдпाрдЬ рджेрддी рд╣ै। рдоूрд▓рдзрди рдХ्рдпा рд╣ै (рд░ु рдоें)
(A) 4000
(B) 5000
(C) 6000
(D) 4500
Q. 3. A number is first decreased by 30% and then increased by 30%. If the number so obtained is 72 less than the original number, then what is the value of the original number?
рдПрдХ рд╕ंрдЦ्рдпा рд╕े рдкрд╣рд▓े 30% рдШрдЯाрдпा рдЬाрддा рд╣ै рдФрд░ рдлिрд░ 30% рдмрдв़ाрдпा рдЬाрддा рд╣ै। рдпрджि рдк्рд░ाрдк्рдд рдХी рдЧрдИ рд╕ंрдЦ्рдпा рдоूрд▓ рд╕ंрдЦ्рдпा рд╕े 72 рдХрдо рд╣ै, рддो рдоूрд▓ рд╕ंрдЦ्рдпा рдХा рдоाрди рдХ्рдпा рд╣ै?
(A) 720
(B) 800
(C) 960
(D) 1080
Q. 4. If the rice is sold at Rs.48 per kg, then there would be a 20% loss. To earn a profit of 20% what should be the price of rice (per kg)?
рдпрджि рдЪाрд╡рд▓ 48 рд░ुрдкрдпे рдк्рд░рддि рдХिрд▓ो рдХे рд╣िрд╕ाрдм рд╕े рдмेрдЪा рдЬाрддा рд╣ै, рддो 20% рдиुрдХрд╕ाрди рд╣ोрдЧा। 20% рдХा рд▓ाрдн рдХрдоाрдиे рдХे рд▓िрдП рдЪाрд╡рд▓ рдХी рдХीрдордд рдХ्рдпा рд╣ोрдиी рдЪाрд╣िрдП (рдк्рд░рддि рдХिрд▓ो)?
(A) Rs. 72
(B) Rs. 76
(C) Rs. 78
(D) Rs. 84
Q. 5. If
рдпрджि P рдХा
(A) 3: 5
(B) 3: 10
(C) 3: 7
(D) 1: 3
Q. 6. Two numbers are in the ratio of 3 : 4. If 8 be subtracted from each, then the new ratio becomes 17: 24. What are the difference between the two numbers?
рджो рд╕ंрдЦ्рдпाрдПँ 3: 4 рдХे рдЕрдиुрдкाрдд рдоें рд╣ैं । рдпрджि рдк्рд░рдд्рдпेрдХ рд╕े 8 рдХो рдШрдЯाрдпा рдЬाрдП, рддो рдирдпा рдЕрдиुрдкाрдд 17: 24 рд╣ो рдЬाрддा рд╣ै। рджोрдиों рд╕ंрдЦ्рдпाрдУं рдХे рдордз्рдп рдХ्рдпा рдЕрди्рддрд░ рд╣ै?
(A) 6
(B) 8
(C) 10
(D) 14
Q. 7. The marked price of an article is 50% more than its cost price. If a discount of 10% is given, then what is the profit percentage?
рдПрдХ рд╡рд╕्рддु рдХी рдЪिрд╣्рдиिрдд рдХीрдордд рдЙрд╕рдХी рд▓ाрдЧрдд рдоूрд▓्рдп рд╕े 50% рдЕрдзिрдХ рд╣ै। рдпрджि 10% рдХी рдЫूрдЯ рджी рдЬाрддी рд╣ै, рддो рд▓ाрдн рдк्рд░рддिрд╢рдд рдХ्рдпा рд╣ै?
(A) 25
(B) 30
(C) 35
(D) 20
Q. 8. If 123457Y is completely divisible by 8, then what will be the digit in place of Y?
рдпрджि 123457Y, 8 рд╕े рдкूрд░ी рддрд░рд╣ рд╕े рд╡िрднाрдЬ्рдп рд╣ै, рддो Y рдХे рд╕्рдеाрди рдкрд░ рдХ्рдпा рдЕंрдХ рд╣ोрдЧा?
(A) 4
(B) 5
(C) 8
(D) 6
Q. 9. What is the value of 13 + 14 ……. + 20?
13 + 14 ……. + 20 рдХा рдоाрди рдХ्рдпा рд╣ै?
(A) 182
(B) 144
(C) 132
(D) 124
Q. 10. What is the value of
(A) 22
(B) 23
(C) 24
(D) 21
Answer key:
1. Sol. (D)
Let the 6th number be x. / рдоाрдиा 6рд╡ीं рд╕ंрдЦ्рдпा x рд╣ै ।
12 × 42 = 5 × 40 + 4 × 44 + x + x + 5 + x + 6
504 = 200 + 176 + 3x + 11
3x = 117
x = 39
Required average/ рдЕрднीрд╖्рдЯ рдФрд╕рдд =
2. Sol. (B)
Let the principal be/рдоाрдиा рдоूрд▓рдзрди = Rs.100x
Rate of interest/рдм्рдпाрдЬ рдХी рджрд░ = 17% and time period/рдФрд░ рд╕рдордп рдЕрд╡рдзि = 3 years/рд╡рд░्рд╖
Simple interest/рд╕ाрдзाрд░рдг рдм्рдпाрдЬ =
51x = 2550
Principal sum/рдоूрд▓ рдзрдирд░ाрд╢ि = 100 × 50 = Rs.5000
3. Sol. (B)
Let the original number/рдоाрдиा рдоूрд▓ рд╕ंрдЦ्рдпा = 100x
If number is first decreased by 30%, then number/рдпрджि рд╕ंрдЦ्рдпा рдкрд╣рд▓े 30% рдХрдо рд╣ो рдЬाрддी рд╣ै, рддो рд╕ंрдЦ्рдпा
= 100x –
Now, the number is again increased by 30%, number/рдЕрдм, рд╕ंрдЦ्рдпा рдлिрд░ рд╕े 30% рдмреЭ рдЬाрддी рд╣ै, рддो рд╕ंрдЦ्рдпा
= 70x +
According to question/рдк्рд░рд╢्рдиाрдиुрд╕ाрд░,
=> 100x − 91x = 72
=> 9x = 72
=> x = 8
Original number/рдоूрд▓ рд╕ंрдЦ्рдпा = 100 × 8 = 800
4. Sol. (A)
Selling price/рд╡िрдХ्рд░рдп рдоूрд▓्рдп = Rs. 48
Loss/рд╣ाрдиि % = 20%
=> Cost price/рдХ्рд░рдп рдоूрд▓्рдп =
=
Now, to earn 20% profit/рдЕрдм, 20% рдХा рд▓ाрдн рдк्рд░ाрдк्рдд рдХрд░рдиे рдХे рд▓िрдП,
=> Selling price/рд╡िрдХ्рд░рдп рдоूрд▓्рдп = 60 +
5. Sol. (B)
Expression/рд╡्рдпंрдЬрдХ:
6. Sol. (D)
Let the numbers be 3x and 4x respectively/рдоाрдиा рд╕ंрдЦ्рдпाрдпेँ 3x рдФрд░ 4x рд╣ैं ।
According to question/рдк्рд░рд╢्рдиाрдиुрд╕ाрд░,
=>
=> 72x − (24 × 8) = 68x − (17 × 8)
=> 72x − 68x = (24 × 8) − (17 × 8)
=> 4x = 7 × 8
=> x =
Required difference/рдЕрднीрд╖्рдЯ рдЕрди्рддрд░ = 14
7. Sol. (C)
Let cost price of the article/рдоाрдиा рд╡рд╕्рддु рдХा рдХ्рд░рдп рдоूрд▓्рдп = Rs. /рд░ु. 100
=> Marked price/рдЕंрдХिрдд рдоूрд▓्рдп = 100 +
Discount/рдЫूрдЯ % = 10%
=> Selling price/рд╡िрдХ्рд░рдп рдоूрд▓्рдп = 150 –
Profit/рд▓ाрдн % =
8. Sol. (D)
Number/рд╕ंрдЦ्рдпा: 123457Y
If a number is completely divisible by 8, then the last three digits of the number must also be divisible by 8.
рдпрджि рдХोрдИ рд╕ंрдЦ्рдпा 8 рд╕े рдкूрд░ी рддрд░рд╣ рд╕े рд╡िрднाрдЬ्рдп рд╣ै, рддो рд╕ंрдЦ्рдпा рдХे рдЕंрддिрдо рддीрди рдЕंрдХों рдХो рднी 8 рд╕े рд╡िрднाрдЬ्рдп рд╣ोрдиा рдЪाрд╣िрдП।
=> must be divisible by 8 and the only three digit number starting with '57' which is divisible by 8 is = 576 => Y = 6
=> 8 рд╕े рд╡िрднाрдЬ्рдп рд╣ोрдиा рдЪाрд╣िрдП рдФрд░ рдХेрд╡рд▓ рддीрди рдЕंрдХों рдХी рд╕ंрдЦ्рдпा '57' рд╕े рд╢ुрд░ू рд╣ोрдиी рдЪाрд╣िрдП рдЬो 8 рд╕े рд╡िрднाрдЬ्рдп рд╣ै = 576 => Y = 6
9. Sol. (C)
Expression: 13 + 14 ……. + 20
The above series is an A.P. with first term, a = 13, last term, l = 20 and common difference, d = 1
рдЙрдкрд░ोрдХ्рдд рд╢्рд░ृंрдЦрд▓ा рдПрдХ рд╕рдоांрддрд░ рд╢ृंрдЦрд▓ा рд╣ै рдЬिрд╕рдоें рдкрд╣рд▓ा рдкрдж, a = 13, рдЕंрддिрдо рдкрдж, l = 20 рдФрд░ рд╕ाрд░्рд╡рдЕंрддрд░, d = 1 рд╣ै
=> Number of terms be/рдкрджों рдХी рд╕ंрдЦ्рдпा = n = (20 − 13) + 1 = 8
Sum of A.P./рд╕рдоांрддрд░ рд╢्рд░ेрдгी рдХा рдпोрдЧ =
10. Sol. (D)
= 20 +
= 20 + 1 = 21
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MAHENDRA GURU