Dear Readers,
Mahendras has started special quizzes for IBPS PO & RRB Exam so that you can practice more and more to crack the examination. This IBPS PO & RRB Exam special quiz series will mold your preparations in the right direction and the regular practice of these quizzes will be really very helpful in scoring good marks in the Examination. Here we are providing you the important question of reasoning ability for the IBPS PO & RRB Exam.
Q-(1-5) In the following number series only one number is wrong. Find out the wrong number.
निम्नलिखित संख्या श्रृंखला में केवल एक संख्या गलत है उस गलत संख्या का पता लगाइये।
(1) 16 18 44 136 548 2744
(1) 16
(2) 18
(3) 136
(4) 2744
(5) None of these
(2) 64 165 100 136 120 124
(1) 100
(2) 165
(3) 136
(4) 124
(5) None of these
(3) 75 74 146 430 1736 8675
(1) 75
(2) 146
(3) 430
(4) 74
(5) None of these
(4) 5 6 15 41 105 230
(1) 15
(2) 6
(3) 41
(4) 5
(5) None of these
(5) 15 16 36 116 484
(1) 15
(2) 36
(3) 116
(4) 484
(5) None of these
(6) A fruitseller sells 80 percent of apples he had and throws away 20 percent of the remainder. Next day he sells 50 percent of the remainder and throws away the rest. What percent of his apples does the vendor throw?
एक फलविक्रेता ने 80 फीसदी सेब बेंचे और शेष 20 फीसदी फेंक दिए। अगले दिन वह शेष का 50 प्रतिशत बेचता है और शेष को फेंकता है तो विक्रेता अपने सेब के कितने प्रतिशत को फेंक देता है?
(1) 13
(2) 16
(3) 8
(4) 9
(5) 12
(7) The marks scored by a student in three subjects are in the ratio of 4: 5: 6. If the candidate scored an overall aggregate of 60% of the sum of the maximum marks and the maximum mark in all three subjects is the same, in how many subjects did he score 60% or more than 60%?
तीन विषयों में एक छात्र द्वारा अर्जित किए गए अंक 4: 5: 6 के अनुपात में हैं। यदि छात्र ने सभी तीन विषयों में मिलाकर कुल सकल अंक अधिकतम अंक के 60%अर्जित किये है, तो उसने 60% या उससे अधिक अंक कितने विषयों मे अर्जित किये?
(1) 1
(2) 3
(3) 2
(4) Can not determined
(5) None of these
(8) Ramu wants to choose 4 books with him for a campaign trip. If he has 11 books to choose from ,then how different ways are possible?
रामू अभियान यात्रा पर अपने साथ 4 पुस्तकें ले जाना चाहता है यदि उसके पास चुनने के लिए 11 पुस्तकें हैं, तो अलग-अलग कितने तरीके संभव हो सकते हैं?
(1) 120
(2) 360
(3) 220
(4) 330
(5) 205
(9) The length, breadth and height of a rectangular room are in the ratio 7:3:1. If the breadth and height are doubled while the length is halved, then by what percent the total area of the walls of the room will be increased?
किसी आयताकार कमरे की लम्बाई, चौड़ाई और ऊँचाई का अनुपात 7: 3: 1 है। यदि इसकी चौड़ाई और ऊँचाई को दुगना और लम्बाई को आधा किया जाए, तो कमरे की दीवारों के क्षेत्रफल में कितने प्रतिशत की वृद्धि होगी ?
(1) 75%
(2) 80%
(3) 85%
(4) 90%
(5) Cannot be determined
(10) In the production of a T-shirt, the cost of raw material of a T-shirt increases by 30%, and the cost of manufacturing also increased by 20% and the selling price of the T-shirt increases by 60%. The raw material and the manufacturing cost, is originally 40% and 60% of the total cost respectively. If the original profit was one-fourth the original manufacturing cost, find the approximate new profit percent?
एक टी-शर्ट के उत्पादन में एक टी-शर्ट के कच्चे माल की सामग्री के मूल्य में 30% की वृद्धि की जाती है और उत्पादन के मूल्य में भी 20% की वृद्धि की जाती है तथा टी-शर्ट के विक्रय मूल्य में 60% की वृद्धि होती है। कच्चे माल और उत्पादन की कीमत मूलतः कुल मूल्य का क्रमशः 40% और 60% है। यदि मूल लाभ मूल उत्पादन की कीमत का एक-चौथाई था नये प्रतिशत लाभ की गणना लगभग में कीजिए।
(1) 55%
(2) 52%
(3) 48%
(4) 40%
(5) Cannot be determined
Answer Key-
Q-(1) Sol-(2)
The series is
×1+4, ×2+4, ×3+4 --------
Q-(2) Sol-(2)
The series is
+(10)2, -(8)2, +(6)2, -(4)2--------
Q-(3) Sol-(3)
The series is
×1-1, ×2-2, ×3-3, ×4-4 --------
Q-(4) Sol-(1)
The series is
5+13 = 6 6+23 = 14
14+33 = 41 41+43 = 105
105+53 = 230
Q-(5) Sol-(3)
The series is ×1 + 12,×2+22, ×3+32 -------
Q-(6) Sol-(5)
Let total apple = 100 first day sold = 80 rest = 20 throw = 4
nest day sold= 8 rest through = 8
total through = 12
Q-(7) Sol-(3)
Let every Subject Marks = 100
Total Marks = 300
Total receive Each Subject = 180
Hence each subject Marks = 48 ,60,72
Q-(8) Sol-(2)
11c4=330
Q-(9) Sol-(4)
Q-(10) Sol-(3)
Let the total initial cost of the T-Shirt be Rs 100.
Manufacturing cost = Rs 60
Raw materials cost = Rs 40
Also, original selling price= 100+15= Rs 115
New raw material cost
= Rs 40+30% of 40 = Rs 52.
New manufacturing cost
= Rs 60+20% of 60 = Rs 72
New cost of the product = Rs124
New selling price
=115+60% of 115=Rs 184
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MAHENDRA GURU