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SSC CHSL Quiz : Quantitative Aptitude | 27-05-2020

Priyanka Mahendras
SSC CHSL Quiz : Quantitative Aptitude | 23 -03-2020





As SSC CHSL 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 are based on the latest pattern of the SSC CHSL 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 salaries of A, B and C are in the ratio 3: 5: 7. If their salaries are increased by 15%, 10% and 20% respectively, then what will be the new ratio of their salaries?


A, B рдФрд░ C рдХा рд╡ेрддрди рдЕрдиुрдкाрдд 3: 5: 7 рдоें рд╣ै। рдпрджि рдЙрдирдХे рд╡ेрддрди рдоें рдХ्рд░рдорд╢: 15%, 10% рдФрд░ 20% рдХी рд╡ृрдж्рдзि рд╣ुрдИ рд╣ै, рддो рдЙрдирдХे рд╡ेрддрди рдХा рдирдпा рдЕрдиुрдкाрдд рдХ्рдпा рд╣ोрдЧा?

(A) 69: 101: 86

(B) 69: 110: 168

(C) 69: 110: 86

(D) 68: 69: 110

Q. 2. The sum of present ages of Tanishka and Sakshi is 52 years. After 2 years Sakshi's age will be 2 years more than Harshita's age then. If Tanishka is younger than Harshita by 6 years, find the age of Sakshi 8 years ago.

рддрдиिрд╖्рдХा рдФрд░ рд╕ाрдХ्рд╖ी рдХी рд╡рд░्рддрдоाрди рдЙрдо्рд░ рдХा рдпोрдЧ 52 рд╡рд░्рд╖ рд╣ै। 2 рд╡рд░्рд╖ рдмाрдж рд╕ाрдХ्рд╖ी рдХी рдЙрдо्рд░ рд╣рд░्рд╖िрддा рдХी рдЙрдо्рд░ рд╕े 2 рд╡рд░्рд╖ рдЕрдзिрдХ рд╣ोрдЧी। рдпрджि рддрдиिрд╖्рдХा, рд╣рд░्рд╖िрддा рд╕े 6 рд╡рд░्рд╖ рдЫोрдЯी рд╣ै, рддो 8 рд╡рд░्рд╖ рдкрд╣рд▓े рд╕ाрдХ्рд╖ी рдХी рдЙрдо्рд░ рдЬ्рдЮाрдд рдХीрдЬिрдпे ।

(A) 18 years/ рд╡рд░्рд╖

(B) 20 years/ рд╡рд░्рд╖

(C) 22 years/ рд╡рд░्рд╖

(D) 24 years/ рд╡рд░्рд╖

Q. 3. What is the value of twenty - four percent of four - ninths of five times of the square of twenty seven?

27 рдХे рд╡рд░्рдЧ рдХे рдкांрдЪ рдЧुрдиे рдХे рдЪाрд░ - рдирд╡рдоांрд╢ рднाрдЧ рдХा рдЪौрдмीрд╕ рдк्рд░рддिрд╢рдд рдХा рдоाрди рдХ्рдпा рд╣ै?

(A) 346.6

(B) 378.6

(C) 376.8

(D) 388.8

Q. 4. The marked price of an article is Rs.2475. The shopkeeper allows a discount of 12.5% and gains 12.5%. If no discount is allowed, what would his gain percentage be?

рдПрдХ рд╡рд╕्рддु рдХा рдЪिрд╣्рдиिрдд рдоूрд▓्рдп 2475 рд░ुрдкрдпे рд╣ै । рджुрдХाрдирджाрд░ 12.5% рдХी рдЫूрдЯ рджेрддा рд╣ै рдФрд░ 12.5% рдХा рд▓ाрдн рдк्рд░ाрдк्рдд рдХрд░рддा рд╣ै । рдпрджि рдХोрдИ рдЫूрдЯ рди рджी рдЬाрдп, рддो рдЙрд╕рдХा рд▓ाрдн рдк्рд░рддिрд╢рдд рдХ्рдпा рд╣ोрдЧा?

(A) 28 (4/7) %

(B) 26 (3/4) %

(C) 27 (1/3) %

(D) 24 (4/7) %

Q. 5. The average age of 80 boys in a class is 19 years. The average age of a group of 15 boys in the class is 21 years and the average age of another group of 25 boys in the class is 18 years. What is the average age of the remaining boys in the class?

рдХрдХ्рд╖ा рдоें 80 рд▓рдб़рдХों рдХी рдФрд╕рдд рдЖрдпु 19 рд╡рд░्рд╖ рд╣ै। рдХрдХ्рд╖ा рдоें 15 рд▓рдб़рдХों рдХे рдПрдХ рд╕рдоूрд╣ рдХी рдФрд╕рдд рдЖрдпु 21 рд╡рд░्рд╖ рд╣ै рдФрд░ рдХрдХ्рд╖ा рдоें 25 рд▓рдб़рдХों рдХे рджूрд╕рд░े рд╕рдоूрд╣ рдХी рдФрд╕рдд рдЖрдпु 18 рд╡рд░्рд╖ рд╣ै। рдХрдХ्рд╖ा рдоें рд╢ेрд╖ рд▓рдб़рдХों рдХी рдФрд╕рдд рдЖрдпु рдХ्рдпा рд╣ै?

(A) 18.5 years/ рд╡рд░्рд╖

(B) 17.5 years/ рд╡рд░्рд╖

(C) 18.875 years/ рд╡рд░्рд╖

(D) 19.25 years/ рд╡рд░्рд╖

Q. 6. Raghav borrowed a total amount of Rs.30000, a part of it at simple interest of 12% per annum and the remaining at 10% per annum. If at the end of two years he paid in all Rs.36480 to settle the loan amount, then what was the amount borrowed at 12% per annum?

рд░ाрдШрд╡ рдиे 30000 рд░ुрдкрдпे рдХी рдХुрд▓ рд░ाрд╢ि рдЙрдзाрд░ рд▓ी, рдЗрд╕рдХा рдПрдХ рд╣िрд╕्рд╕ा рд╡рд╣ рдк्рд░рддि рд╡рд░्рд╖ 12% рдХी рд╕ाрдзाрд░рдг рдм्рдпाрдЬ рдХी рджрд░ рд╕े рдФрд░ рд╢ेрд╖ рдХो 10% рдк्рд░рддि рд╡рд░्рд╖ рдХी рджрд░ рд╕े । рдпрджि рджो рд╡рд░्рд╖ рдХे рдЕंрдд рдоें рдЙрд╕рдиे рдЛрдг рд░ाрд╢ि рдХो рдЪुрдХाрдиे рдХे рд▓िрдП рдХुрд▓ 36480 рд░ुрдкрдпे рдХा рднुрдЧрддाрди рдХिрдпा, рддो рдк्рд░рддि рд╡рд░्рд╖ 12% рдкрд░ рдЙрдзाрд░ рд░ाрд╢ि рдХ्рдпा рдеी?

(A) Rs. / рд░ु. 16000

(B) Rs. / рд░ु. 18000

(C) Rs. / рд░ु. 17500

(D) Rs. / рд░ु. 12000

Q. 7. If (a2 + 1)/ a = 3, then the value of a3 + (1/a3) is 

рдпрджि (a2 + 1)/ a = 3, рддो a3 + (1/a3) рдоाрди рд╣ै

(A) 9

(B) 18

(C) 27

(D) 1

Q. 8. 49 men can do a piece of work in (17/2) days, working 6 hours a day. If 119 men will employee for 7 hours a day then in how many days will the same work be completed?

49 рдкुрд░ुрд╖ рджिрди рдоें 6 рдШंрдЯे рдХाрдо рдХрд░рддे рд╣ुрдП (17/2) рджिрдиों рдоें рдПрдХ рдХाрдо рдХो рдкूрд░ा рдХрд░ рд╕рдХрддे рд╣ैं। рдпрджि 119 рдкुрд░ुрд╖ рдПрдХ рджिрди рдоें 7 рдШंрдЯे рдХाрдо рдХрд░рдиे рдХे рд▓िрдП рд▓рдЧाрдП рдЬाрдп рддो рдЙрд╕ी рдХाрдо рдХो рдкूрд░ा рд╣ोрдиे рдоें рдХिрддрдиे рджिрди рд▓рдЧेрдЧें?

(A) 8 days/ рджिрди

(B) 3 days/ рджिрди

(C) 5 days/ рджिрди

(D) 3 (1/2) days/ рджिрди

Q. 9.If a + b + c = 5, a2 + b2 + c2 = 8 and (1/a) + (1/b) + (1/c) = 2, where a, b and c are all non -zero, then abc is-
рдпрджि a + b + c = 5, a2 + b2 + c2 = 8 рдФрд░ (1/a) + (1/b) + (1/c) = 2, рдЬрд╣ाँ a, b рдФрд░ c рд╕рднी рдЕрд╢ूрди्рдп рд╣ै рддрдм abc рд╣ै-

(A) 1

(B) 2/17

(C) 17/2

(D) 17/4

Q. 10.
 A metallic cuboid 8 × 6 × 4 cm.3 is melted. The minimum volume of molten metal which should be added to mould it into a cube whose edge is 'x' where 'x' is an integer, is

рдПрдХ 8 × 6 × 4 рд╕ेрдоी.3 рдХा рдзाрдд्рд╡ीрдп рдШрдиाрдн рдкिрдШрд▓ाрдпा рдЧрдпा рд╣ै। рдкिрдШрд▓ी рд╣ुрдИ рдзाрддु рдоें рдХिрддрдиी рди्рдпूрдирддрдо рдоाрдд्рд░ा рдХो рдоिрд▓ाрдпा рдЬाрдиा рдЪाрд╣िрдП рддाрдХि рдвाрд▓рдиे рдкрд░ рдкрд░ рдпрд╣ рдПрдХ рдШрди рдоें рдЬिрд╕рдХी рднुрдЬा 'x' рд╣ै рдЬрд╣ां 'x' рдПрдХ рдкूрд░्рдгांрдХ рд╣ै, рдмрджрд▓ рдЬाрдп, рд╣ै

(A) 20 cm.3/ рд╕ेрдоी.3

(B) 24 cm.3/ рд╕ेрдоी.3

(C) 23 cm.3/ рд╕ेрдоी.3

(D) 21 cm.3/ рд╕ेрдоी.3

Answer key:

1. Sol. (B)
Required ratio/ рдЕрднीрд╖्рдЯ рдЕрдиुрдкाрдд = 3 × (115/100): 5 × (110/100): 7 × (120/100)
= 345: 550: 840
= 69: 110: 168
2. Sol. (C)
T + S = 52 ... (I)
S + 2 = H + 2 + 2
S – H = 2 ... (II)
H – T = 6 ... (III)
On solving (I), (II) and (III), we get/(I), (II) рдФрд░ (III) рдХो рд╣рд▓ рдХрд░рдиे рдкрд░, рд╣рдо рдк्рд░ाрдк्рдд рдХрд░рддे рд╣ैं
H = 28, T = 22, S = 30
Required age of Sakshi 8 years ago/8 рд╡рд░्рд╖ рдкрд╣рд▓े рд╕ाрдХ्рд╖ी рдХी рдЕрднीрд╖्рдЯ рдЖрдпु = 30 – 8 = 22 years/ рд╡рд░्рд╖
3. Sol. (D)
Required value/ рдЕрднीрд╖्рдЯ рдоाрди = (24/100) × (4/9) × 5 × (27)2
= 388.8
4. Sol. (A)
Cost price of the article/ рд╡рд╕्рддु рдХा рдХ्рд░рдп рдоूрд▓्рдп = 2475 × (7/8) × (8/9) = Rs. / рд░ु. 1925
If no discount will be given/ рдпрджि рдХोрдИ рдЫूрдЯ рди рджी рдЧрдпी рд╣ो,
Profit/ рд▓ाрдн = {(2475 – 1925)/ 1925} × 100 = 28 (4/7) %
5. Sol. (C)
Average age of remaining boys/ рд╢ेрд╖ рд▓реЬрдХों рдХी рдФрд╕рдд рдЖрдп
= [{80 × 19 – (15 × 21 + 25 × 18)}]/40
= 18.875 years/ рд╡рд░्рд╖
6. Sol. (D)
According to the question/ рдк्рд░рд╢्рдиाрдиुрд╕ाрд░,
{(x × 2 × 12)/ 100} + [{(3000 – x) × 2 × 10}/ 100] = 6480
24x + 600000 – 20x = 648000
4x = 48000
x = 12000
7. Sol. (B)
(a2 + 1)/ a = 3
a + (1/a) = 3
a3 + (1/a3) = (3)3 – 3 × 3
= 27 – 9 = 18
8. Sol. (B)
49 × 6 × (17/2) = 119 × 7 × ?
? = 3 days/ рджिрди
9. Sol. (D)
(1/a) + (1/b) + (1/c) = 2
On solving this we get,
ab + bc + ac = 2abc
(
a + b + c)2 = a2 + b2 + c2 + 2 (ab + bc + ca)
52 = 8 + 2 × 2abc
abc = 17/4

10. Sol. (B)
According to the question/ рдк्рд░рд╢्рдиाрдиुрд╕ाрд░,
Volume of the cuboid/ рдШрдиाрдн рдХा рдЖрдпрддрди = 8 × 6 × 4 = 192 cm.3/ рд╕ेрдоी.3
Required quantity/ рдЕрднीрд╖्рдЯ рдоाрдд्рд░ा = 216 – 192 = 24 cm.3/ рд╕ेрдоी.3

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