Quantitative Aptitude Quiz For SBI / RBI Main Exam | 08-06-2020

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Mahendras has started special quizzes for SBI / RBI Main Exam so that you can practice more and more to crack the examination. This SBI / RBI Main Exam 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 important question of Quantitative aptitude for SBI / RBI Main Exam.

Q-(1-5) What approximate value should come at place of question mark (?) in the following questions?

निम्नलिखित प्रश्नों में प्रश्नवाचक चिन्ह के स्थान पर लगभग क्या मान आएगा?

(1) 179.7×15.03-34.9²=?% of 399

(1) 340

(2) 320

(3) 370

(4) 410

(5) 300

(2) 24³+95²=?³+115²

(1) 16

(2) 19

(3) 21

(4) 24

(5) 13

(3) 47.3% of 249.5-24.92% of 345.88=?²

     

(1) 2

(2) 9

(3) 6

(4) 4

(5) 12

(4) 216% of 1104-?% of 907=?% of 95

   

(1) 15

(2) 25

(3) 35

(4) 20

(5) 40

(5) 74²-29²=?% of 750

(1) 620

(2) 690

(3) 760

(4) 590

(5) 730



(6) P and Q are sitting in a ring with 11 other persons. If the arrangement of 11 persons is at random, then the probability that there are exactly 4 persons between them?

P और Q एक वृत्त में 11 अन्य व्यक्तियों के साथ बैठे हैं। यदि 11 व्यक्तियों की व्यवस्था यादृच्छिक है, तो क्या संभावना है कि उनके बीच वास्तव में 4 व्यक्ति हैं?

(1) 1/3

(2) 1/4

(3) 1/5

(4) 1/6

(5) None of these

(7) Two pipes A and B can fill a tank with water in 30 minutes and 45 minutes respectively. Another pipe C can empty the tank in 36 minutes. First A and B are opened. After 12 minutes, C is also opened. The tank is filled up in.

दो पाइप A और B क्रमशः 30 मिनट और 45 मिनट में पानी से एक टैंक भर सकते हैं। एक और पाइप C 36 मिनट में टैंक को खाली कर सकता है। पहले A और B को खोला जाता है। 12 मिनट के बाद, C भी खोला जाता है। टैंक कितने समय में भर जाता है।

(1) 26

(2) 24

(3) 22

(4) 21

(5) None of these

(8) 500 kg of ore contained a certain amount of iron. After the first blast furnace process, 200 kg of slag containing 12.5% of iron was removed. The percentage of iron in the remaining ore was found to be 20% more than the percentage in the original ore. How many kg of iron were there in the original 500 kg ore?

500 किलोग्राम अयस्क में एक निश्चित मात्रा में लोहा होता है। पहली ब्लास्ट फर्नेस प्रक्रिया के बाद, 200 किलोग्राम स्लैग में 12.5% लोहा था। मूल अयस्क से शेष अयस्क में लोहे का प्रतिशत 20% अधिक पाया गया। मूल 500 किलोग्राम अयस्क में कितने किलोग्राम लोहा था?

(1) 54.2

(2) 58.5

(3) 46.3

(4) 42.4

(5) 89.2



(9) Ramesh, Suresh and Mahesh started a business with the investment in the ratio 5:8:10 respectively. After 1 year Mahesh withdraw 50% of his capital and Ramesh increased his capital by 80% of his investment. After 2 years in what ratio should the earned profit be distributed among Ramesh, Suresh and Mahesh?

रमेश, सुरेश और महेश ने क्रमशः 5: 8: 10 के अनुपात में निवेश के साथ एक व्यवसाय शुरू किया। 1 साल के बाद महेश ने अपनी पूंजी का 50% हिस्सा वापस ले लिया और रमेश ने अपने निवेश में 80% की वृद्धि की। 2 साल के बाद रमेश, सुरेश और महेश के बीच अर्जित लाभ को किस अनुपात में वितरित किया जाना चाहिए?

(1) 15:10:17

(2) 14:16:15

(3) 11:15:19

(4) 8:13:7

(5) 10:15:14


(10) In a family, a couple has a son and daughter. The age of the father is four times that of his daughter and the age of the son is half of his mother. The wife is ten years younger to her husband and the brother is six years older than his sister. What is the age of the mother?

एक परिवार में, एक दंपति का एक बेटा और बेटी है। पिता की उम्र उसकी बेटी से चार गुना है और बेटे की उम्र उसकी मां से आधी है। पत्नी अपने पति से दस साल छोटी है और भाई उसकी बहन से छह साल बड़ा है। माँ की उम्र क्या है?

(1) 34

(2) 40

(3) 38

(4) 42

(5) None of these

Answer Key-

Q-(1) Sol-(3)

2700-1225=?×4

?=368.75



Q-(2) Sol-(3)

13824+9025-13225=?³

?³=9624

? 21

Q-(3) Sol-(3)  

118-86.5=?²

?=6 (approx)

Q-(4) Sol-(2)

2376=?% of 1000

? 24

   Q-(5) Sol-(1)

?×7.5=5476-841

?=4635/7.5

?=618

Q-(6) Sol-(4) Fix position of P, then Q can be sit in 12 positions, so total possible outcome = 12
Now, exactly 4 persons are sitting between them. This can be done in two ways so favorable outcomes = 2

So, probability = 2/12 = 1/6

Q-(7) Sol-(2)

Required answer = 12 +12 = 24

Q-(8) Sol-(5) initially x kg of iron in 500 kg ore.
Iron in the 200 kg of removed =25
The percentage of iron in the remaining ore was found to be 20% more than the percentage in the original ore.
So,

(x–25)/300=1.2x/500

x=89.2

Q-(9) Sol-(2)

Required answer=14:16:15

Q-(10) Sol-(1)
Suppose the daughter’s age be x years. Then, father’s age = 4x
Mother’s age = 4x – 10
Son’s age = x + 6
So, x+6 = (4x–10)/2
x = 11
Therefore Mother’s present age = 4x -10 = 44-10 =34