Dear Readers,
As SSC CPO 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 CPO 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.
(A) 0
(B) ½
(C) 1
(A) 84 : 105 : 56 : 165
(B) 105 : 56 : 165 : 84
(C) 56 : 84 : 105 : 165
(D) 22 : 39 : 46 : 56
Q.4. 12 monkey can eat 12 bananas in 12 minutes. In how many minutes can 4 monkey can eat 4 bananas?
12 बन्दर 12 केले 12 मिनट में खा सकते है ! 4 बन्दर 4 केले कितने मिनट में खा सकते है?`
(A) 8
(B) 12
(C) 10
(D) 4
Q.5. 20 Men can do a piece of work in 18 days. They worked together for 3 days, then 5 men joined them. In how many more days is the work completed?
20 आदमी एक काम को 18 दिन में कर सकते है उहोने 3 दिन मिलकर काम किया उसके बाद 5 आदमी उनके साथ शामिल हो गए. काम कितने दिनों में पूरा हो जायेगा?
(A) 13
(B) 12
(C) 14
(D) 15
Q.6. The ratio of the ages of A and B at present is 3 : 1. Four year earlier the ratio was 4 : 1. The present age of A is :
वर्तमान में A और B की आयु का अनुपात 3 : 1 है चार वर्ष पूर्व अनुपात 4 : 1 था ! A की वर्तमान आयु कितनी है ?
(A) 48 years
(B) 40 years
(C) 32 years
(D) 36 years
(A) 2
(B) 4
(C) 1
(D) 2x
Q.8. A certain amount of money earns Rs. 540 as simple interest in 3 years. If it earns a compound interest of Rs. 376.20 at the same rate of interest in 2 years, find the amount.
किसी धनराशि पर साधारण ब्याज के रूप में 3 वर्ष में रु. 540 मिलते है यदि 2 वर्ष में उतनी ही ब्याज दर पर रु. 376.20 का चक्रव्रिधि ब्याज मिले तो राशि ज्ञात कीजिये?
(A) 2000
(B) 2100
(C) 1600
(D) 1800
Q.9. The average of some natural numbers is 15. If 30 is added to first number and 5 is subtracted from the last number, the average become 17.5. Then the numbers of natural numbers is :
कुछ प्राकृत संख्याओ का औसत 15 है यदि पहली संख्या में 30 जोड़ा जाये और अंतिम संख्या में 5 घटा दिया जाये तो औसत 17.5 रहता है प्राकृत संख्याओ की संख्या कितनी है?
(A) 10
(B) 20
(C) 30
(D) 15
Q.10. The LCM of two numbers is 12 times their HCF. The sum of HCF and LCM is 403. If one number is 93, then find the other number?
दो संख्याओ का ल.स.प. 12 गुना है म.स.प का, उनके म.स.प. और ल.स.प. का योग 403 है यदि एक संख्या 93 है तो दूसरी संख्या ज्ञात कीजिये ?
(A) 124
(B) 248
(C) 372
(D) 403
Answer Key-
Q-(1) Sol-(B)
Q-(2) Sol-(D)
Q-(3) Sol-(C)
Q-(4) Sol-(B)
Q-(5) Sol-(B)
20 men can do a piece of work in 18 days.
Then total work = 20 x 18 = 360
If they worked for 3 days then, the 3 days work is = 20 x 3 = 60.
Q-(6) Sol-(D)
Let the ratio be x.
A = 3x B = x.
Four year ago,
Then the present age of A is 36 years.
Q-(7) Sol-(B)
4 is to be added to make square of (2x+2)
Q-(8) Sol-(A)
If 3 years S.I is 540 then one year S.I will be 180.
If two year CI is 376.20 then we can say that
Q-(9) Sol-(A)
Let the numbers be x.
Q-(10) Sol-(A)
Let HCF = x. then LCM = 12x.
Given that,
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MAHENDRA GURU