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SSC CHSL Quiz : Quantitative Aptitude |12-06-2020

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. If a + b + c = 0, then the value of (a + b – c)2 + (b + c – a)2 + (c + a – b)2 is -

рдпрджि a + b + c = 0 рд╣ो рддो (a + b – c)2 + (b + c – a)2 + (c + a – b)2 рдХा рдоाрди рд╣ै -
(A) 0 
(B) 8abc
(C) 4 (a2 + b2 + c2) 
(D) 4 (ab + bc + ca)
Q. 2. A got twice as many marks in English as in Science. His total marks in English, Science and Mathematics is 180. If the ratio of his marks in English and Mathematics is 2: 3, what is his marks in Science? 

A рдХो рдЕंрдЧ्рд░ेрдЬी рд╡िрд╖рдп рдоें рд╡िрдЬ्рдЮाрди рд╡िрд╖рдп рдХी рдЕрдкेрдХ्рд╖ा рджुрдЧुрдиे рдЕंрдХ рдоिрд▓े। рдЕंрдЧ्рд░ेрдЬी, рд╡िрдЬ्рдЮाрди рдФрд░ рдЧрдгिрдд рд╡िрд╖рдпों рдоें рдЙрд╕े рдХुрд▓ рдоिрд▓ा рдХрд░ 180 рдЕंрдХ рдк्рд░ाрдк्рдд рд╣ुрдП। рдпрджि рдЙрд╕े рдЕंрдЧ्рд░ेрдЬी рдФрд░ рдЧрдгिрдд рд╡िрд╖рдпों рдоें рдк्рд░ाрдк्рдд рдЕंрдХों рдХा рдЕрдиुрдкाрдд 2: 3 рд╣ै рддो рдЙрд╕े рд╡िрдЬ्рдЮाрди рд╡िрд╖рдп рдоें рдХिрддрдиे рдЕंрдХ рдк्рд░ाрдк्рдд рд╣ुрдП?
(A) 20
(B) 60
(C) 30
(D) 40
Q. 3. Find the difference between the compound interest and the simple interest on Rs.32000 at 10% p.a. for 4 years. 

32000 рдХी рдзрдирд░ाрд╢ि рдкрд░ 4 рд╡рд░्рд╖ рдХे рд▓िрдП 10% рд╡ाрд░्рд╖िрдХ рдХी рджрд░ рд╕े рдЪрдХ्рд░рд╡ृрдж्рдзि рдм्рдпाрдЬ рдФрд░ рд╕ाрдзाрд░рдг рдм्рдпाрдЬ рдХा рдЕрди्рддрд░ рдмрддाрдЗрдП।
(A) 2051.20
(B) 2052.50
(C) 2025.20
(D) 2501.20
Q. 4. Two trains start from stations A and B and travel towards each other at speeds of 50 km /hr. and 60 km/hr. respectively. At the time of their meeting, the second train has travelled 120 km. more than the first. The distance between A and B is -


рджो рд░ेрд▓рдЧाреЬिрдпां A рдФрд░ B рд╕्рдЯेрд╢рдиों рд╕े рд░рд╡ाрдиा рд╣ोрддी рд╣ै рдФрд░ рдХ्рд░рдорд╢ः 50 рдХिрдоी./рдШं. рд╡ 60 рдХिрдоी./рдШं. рдХी рдЪाрд▓ рд╕े рдПрдХ-рджूрд╕рд░े рдХी рдУрд░ рдЪрд▓рддी рд╣ै। рдЬрдм рд╡े рдПрдХ-рджूрд╕рд░े рд╕े рдоिрд▓рддी рд╣ै рдЙрд╕ рд╕्рдеाрди рддрдХ рджूрд╕рд░ी рд░ेрд▓рдЧाреЬी рдкрд╣рд▓ी рд╡ाрд▓ी рдХी рдЕрдкेрдХ्рд╖ा 120 рдХिрдоी. рдЕрдзिрдХ рдпाрдд्рд░ा рдХрд░рддी рд╣ै। A рдФрд░ B рдХे рдмीрдЪ рдХी рджूрд░ी рдмрддाрдЗрдП।
(A) 1200 km. /рдХिрдоी.
(B) 1440 km. /рдХिрдоी.
(C) 1320 km. /рдХिрдоी.
(D) 990 km. /рдХिрдоी.
Q. 5. If P3 + 3P2 + 3P = 7, then the value of P2 + 2P is

рдпрджि P3 + 3P2 + 3P = 7, рд╣ो рддो P2 + 2P рдХा рдоाрди рдХ्рдпा рд╣ोрдЧा?


(A) 4

(B) 3

(C) 5

(D) 6

Q. 6. Mahendra, Rajendra, and Dhirendra enter into a partnership with capital contribution of Rs. 250000, Rs. 300000 and Rs. 150000 respectively. Mahendra is an active partner and receives 30% of profit in live of business management. The balance profit is distributed in proportion to the capital investment. At the year end, Mahendra gets Rs. 20000 more than Rajendra and Dhirendra together. Find the share of Dhirendra.


рдорд╣ेрди्рдж्рд░, рд░ाрдЬेрди्рдж्рд░ рдФрд░ рдзीрд░ेрди्рдж्рд░ рд╕ाрдЭेрджाрд░ी рдХे рд╡्рдпाрдкाрд░ рдоें рдХ्рд░рдорд╢ः 250000 рд░ू., 300000 рд░ू. рдФрд░150000 рд░ू. рдХी рдкूँрдЬिрдпाँ рдиिрд╡ेрд╢ рдХрд░рддे рд╣ैं। рдорд╣ेрди्рдж्рд░ рд╕рдХ्рд░िрдп рд╕ाрдЭेрджाрд░ рд╣ैं рдФрд░ рд╡рд╣ рд╡्рдпाрдкाрд░ рдХे рдк्рд░рдмрди्рдзрди рдХे рд▓िрдП рд▓ाрдн рдХा 30% рдк्рд░ाрдк्рдд рдХрд░рддा рд╣ै। рд╢ेрд╖ рд▓ाрдн рдХो рдЙрдирдХे рдж्рд╡ाрд░ा рдиिрд╡ेрд╢िрдд рдкूंрдЬी рдХे рдЕрдиुрдкाрдд рдоें рдмांрдЯ рджिрдпा рдЬाрддा рд╣ै। рд╡рд░्рд╖ рдХे рдЕрди्рдд рдоें рдорд╣ेрди्рдж्рд░, рд░ाрдЬेрди्рдж्рд░ рдФрд░ рдзीрд░ेрди्рдж्рд░ рд╕े 20000 рд░ू. рдЕрдзिрдХ рдк्рд░ाрдк्рдд рдХрд░рддा рд╣ै। рдзीрд░ेрди्рдж्рд░ рдХा рд╣िрд╕्рд╕ा рдЬ्рдЮाрдд рдХीрдЬिрдП।

(A) Rs. 18000

(B) Rs. 15000

(C) Rs. 8000

(D) Rs. 30000

Q. 7. Rajesh sold an article to Sachin at a loss of 28%. Sachin spent Rs. 168 on its repairs and sold it to Vijay for Rs. 3591, thereby, making a profit of 12.5%. Find the cost price of the article for Rajesh.



рд░ाрдЬेрд╢, рд╕рдЪिрди рдХो рдПрдХ рд╡рд╕्рддु 28% рдХी рд╣ाрдиि рдкрд░ рдмेрдЪрддा рд╣ै। рд╕рдЪिрди рдЗрд╕рдХी рдорд░рдо्рдордд рдкрд░ 168 рд░ू. рдЦрд░्рдЪ рдХрд░рддा рд╣ै рдФрд░ рд╡рд╕्рддु рдХो 12.5% рд▓ाрдн рдкрд░ рд╡िрдЬрдп рдХो 3591 рд░ू. рдоें рдмेрдЪ рджेрддा рд╣ै। рд░ाрдЬेрд╢ рдХे рд▓िрдП рдХ्рд░рдп рдоूрд▓्рдп рдЬ्рдЮाрдд рдХीрдЬिрдП।

(A) Rs. 3800

(B) Rs. 3500

(C) Rs. 4000

(D) Rs. 4200

Q. 8. The average of marks obtained by a student in some subjects is 80. If the average without the highest and the lowest marks is calculated, it is 81. If the highest obtained score is 92, and the number of subjects is equal to the product of the first even prime number and the second odd prime number then find the lowest marks.



рдПрдХ рдЫाрдд्рд░ рдж्рд╡ाрд░ा рдХुрдЫ рд╡िрд╖рдпों рдоें рдк्рд░ाрдк्рдд рдЕंрдХों рдХा рдФрд╕рдд 80 рд╣ै। рдпрджि рдФрд╕рдд рдХी рдЧрдгрдиा рдЙрдЪ्рдЪрддрдо рдФрд░ рди्рдпूрдирддрдо рдЕंрдХों рдХो рд╣рдЯाрдХрд░ рдХी рдЬाрддी рд╣ै рддो рдоाрди 81 рдк्рд░ाрдк्рдд рд╣ोрддा рд╣ै। рдпрджि рдЫाрдд्рд░ рдж्рд╡ाрд░ा рдк्рд░ाрдк्рдд рд╕рд░्рд╡ाрдзिрдХ рдЕंрдХ 92 рд╣ै рддрдеा рд╡िрд╖рдпों рдХी рд╕ंрдЦ्рдпा рдкрд╣рд▓ी рд╕рдо рдЕрднाрдЬ्рдп рд╕ंрдЦ्рдпा рд╡ рджूрд╕рд░ी рд╡िрд╖рдо рд╕ंрдЦ्рдпा рдХे рдЕрднाрдЬ्рдп рд╕ंрдЦ्рдпा рдХे рдЧुрдгрдирдлрд▓ рдХे рдмрд░ाрдмрд░ рд╣ै рддो рди्рдпूрдирддрдо рдЕंрдХ рдЬ्рдЮाрдд рдХीрдЬिрдП।

(A) 50

(B) 60

(C) 70

(D) 75

Q. 9. The difference between simple and compound interest (compounded annually) on a sum of money for 2 years at 10% per annum is Rs. 95. The sum is-


рдПрдХ рдзрдирд░ाрд╢ि рдкрд░ 2 рд╡рд░्рд╖ों рдоें 10% рд╡ाрд░्рд╖िрдХ рдм्рдпाрдЬ рдХी рджрд░ рд╕े рд╕ाрдзाрд░рдг рдм्рдпाрдЬ рдФрд░ рдЪрдХ्рд░рд╡ृрдж्рдзि рдм्рдпाрдЬ рдоें рдЕрди्рддрд░ 95 рд░ू. рд╣ै। рдзрдирд░ाрд╢ि рд╣ै-

(A) Rs. 8550

(B) Rs. 7600

(C) Rs. 11400

(D) Rs. 9500

Q. 10. Three years ago, the ratio between P's age and Q's age was 9: 5. After 2 years, P's age will be 17 years more than that of the age of Q after 5 years. What is Q's present age?


рддीрди рд╡рд░्рд╖ рдкрд╣рд▓े, P рдХी рдЖрдпु рдФрд░ Q рдХी рдЖрдпु рдоें рдЕрдиुрдкाрдд 9: 5 рдеा। 2 рд╡рд░्рд╖ рдмाрдж, P рдХी рдЖрдпु рдкांрдЪ рд╡рд░्рд╖ рдкрд╢्рдЪाрдд Q рдХी рдЖрдпु рд╕े 17 рд╡рд░्рд╖ рдЬ्рдпाрджा рд╣ोрдЧी। Q рдХी рд╡рд░्рддрдоाрди рдЖрдпु рдХ्рдпा рд╣ै?

(A) 25 years/рд╡рд░्рд╖

(B) 26 years/рд╡рд░्рд╖

(C) 27 years/рд╡рд░्рд╖

(D) 28 years/рд╡рд░्рд╖
ANSWER KEY:
1. Sol. (C)
a + b + c = 0
a + b = – c, b + c = – a, c + a = – b
(a + b – c)2 + (b + c – a)2 + (c + a – b)2
= 4c2 + 4a2 + 4b2
= 4 (a2 + b2 + c2)
2. Sol. (C)
Let his marks in science is x/ рдоाрдиा рд╡िрдЬ्рдЮाрди рдоें рдк्рд░ाрдк्рдд рдЕंрдХ x рд╣ैं ।
Marks in English/рдЕंрдЧ्рд░ेрдЬी рдоें рдЕंрдХ = 2x
Marks in Mathematics/рдЧрдгिрдд рдоें рдЕंрдХ = 180 – x – 2x = 180 – 3x
According to question/рдк्рд░рд╢्рдиाрдиुрд╕ाрд░,
{2x/ (180 – 3x)} = 2/3
3x = 180 – 3x
6x = 180
x = 30
3. Sol. (A)
Compound interest/рдЪрдХ्рд░рд╡ृрдж्рдзि рдм्рдпाрдЬ = [3200 × {1 + (10/100)}4] – 32000
= [{32000 (14641 – 10000)}/ 10000]
= 3.2 (4641)
= 14851.2
Simple interest/рд╕ाрдзाрд░рдг рдм्рдпाрдЬ = {(32000 × 10 × 4)/ 100}
= 12800
Req. difference/рдЕрднीрд╖्рдЯ рдЕрди्рддрд░ = 14851.2 – 12800 = Rs. 2051.20
4. Sol. (C)
Let train A covers x km/рдоाрдиा рдЯ्рд░ेрди A, x рдХिрдоी. рдХी рджूрд░ी рддрдп рдХрд░рддी рд╣ै ।
(x/ 50) = (x + 120)/ 60
60x = 50x + 6000
10x = 6000
x = 600 km/рдХिрдоी.
Total distance/рдХुрд▓ рджूрд░ी = 600 + 600 + 120
= 1320 km/рдХिрдоी.
5. Sol. (B)
(P + 1)3 = P3 + 1 + 3P2 + 3P
P3 + 1 + 3P2 + 3P = 8
(P + 1)3 = 23
P + 1 = 2
P = 1
P2 + 2P = 1 + 2 = 3
6. Sol. (D)
Ratio of equivalent capitals/рд╕рдорддुрд▓्рдп рдкूँрдЬिрдпों рдоें рдЕрдиुрдкाрдд = 25: 30: 15 = 5: 6: 3
Let total profit/рдоाрдиा рдХुрд▓ рд▓ाрдн = x
{(30x/100) + (5/14) × (70x/100)} – {(9/14) × (70x/100)} = 20000
(55x/100) – (45x/100) = 20000
x = (100 × 20000)/ 10 = 200000
Dhirendra's share/рдзीрд░ेрди्рдж्рд░ рдХा рд╣िрд╕्рд╕ा = 30000
7. Sol. (D)
Let selling price of the article for Rajesh
рдоाрдиा рд░ाрдЬेрд╢ рдХे рд▓िрдП рд╡िрдХ्рд░рдп рдоूрд▓्рдп= Rs. 72x
C.P. for Sachin/рд╕рдЪिрди рдХे рд▓िрдП рдХ्рд░рдп рдоूрд▓्рдп = Rs. 72x
According to question/рдк्рд░рд╢्рдиाрдиुрд╕ाрд░,
(72x + 168) × (112.5/ 100) = 3591
72x + 168 = (3591 × 100)/ 112.5 = 3192
72x = 3192 – 168
x = 3024/72 = 42
C.P. = 100 × 42 = 4200
8. Sol. (B)
Sum of the marks /рдЕंрдХों рдХा рдпोрдЧ = 80 × 10 = 800
Lowest score/рди्рдпूрдирддрдо рдЕंрдХ = 800 – 92 – 81 × 8
= 800 – 92 – 648
= 60
9. Sol. (D)
P = 95 × (100/10)2 = 95 × 100 = 9500
10. Sol. (D)
Let A's present age/рдоाрдиा A рдХी рд╡рд░्рддрдоाрди рдЖрдпु = x
and Q's present age /рдФрд░ Q рдХी рд╡рд░्рддрдоाрди рдЖрдпु = y
According to question/рдк्рд░рд╢्рдиाрдиुрд╕ाрд░,
{(x – 3)/ (y – 3)} = 9/5
5x – 15 = 9y – 27 ... (1)
x +2 = 17 + y + 5
x – y = 20 ... (2)
On solving (1) & (2) /рд╕рдоी. (1) рдФрд░ (2) рдХो рд╣рд▓ рдХрд░рдиे рдкрд░ y = 28 years/рд╡рд░्рд╖


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