Dear Readers,
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-(1-2) What should come in place of the question mark (?) in the following questions?
निम्नलिखित प्रश्न में प्रश्नवाचक चिन्ह (?) के स्थान पर क्या आयेगा?
(1) 127 × 346 + 6683 = ?4
(1) 18
(2) 15
(3) 13
(4) 25
(5) 9
(2) ?3=24011/2×125% of 7000
(1) 35
(2) 25
(3) 15
(4) 22
(5) None of these
Q-(3-7) In each of the following questions, two equations are given. You have to solve them and state the correct relationship-
निम्नलिखित प्रश्नों में दो समीकरण (I) और (II) दिये गये है दोनों समीकरण हल कीजिए और सही सम्बन्ध स्थापित कीजिये-
(3) I. 17x2 + 48x = 9 II. 13y2 = 32y – 12
(1) If x > y
(2) If x > y
(3) If x < y
(4) If x < y
(5) If x = y or relationship can not be established
(4) I. 18x2 + 18x + 4 = 0 II. 12y2 + 29y + 14 = 0
(1) If x > y
(2) If x > y
(3) If x < y
(4) If x < y
(5) If x = y or relationship can not be established
(5) I. 4x + 7y = 209 II. 12x-14y = -38
(1) If x > y
(2) If x > y
(3) If x < y
(4) If x < y
(5) If x = y or relationship can not be established
(6) I. x4 - 227 = 398 II. y2 + 321 = 346
(1) If x > y
(2) If x > y
(3) If x < y
(4) If x < y
(5) If x = y or relationship can not be established
(7) I. 2x2 + 11x + 14 = 0 II. 4y2 + 12y + 9 = 0
(1) If x > y
(2) If x > y
(3) If x < y
(4) If x < y
(5) If x = y or relationship can not be established
(8) In annual examination, Ruchi got 74 percent marks and Rani got 534 marks. The maximum marks in the examination is 950. What is the average marks got by Ruchi and Rani?
वार्षिक परीक्षा में रूचि को 74 प्रतिशत अंक और रानी को 534 अंक मिले। परीक्षा के अधिकतम अंक 950है। रूचि और रानी दोनों को मिलाकर औसत अंक कितने मिले है?
(1) 681.2
(2) 618.5
(3) 658.4
(4) 656.2
(5) None of these
(9) In how many different ways can the letters of the word 'SCIENTIST' be arranged so that all the vowels always come together?
शब्द 'SCIENTIST' के अक्षरों को कितने विभिन्न तरीके से व्यवस्थित कर सकते हैं कि सभी स्वर एक साथ रहे?
(1) 1890
(2) 5670
(3) 11340
(4) 3780
(5) None of these
(10) Anuj has Rs. 37200 in the form of Rs. 100, Rs. 500 and Rs. 1000 notes. The ratio of the number of these notes is 7 : 5 : 3. What is the amount of Rs. 500 notes?
अनुज के पास 100 रू., 500 रू. 1000 रू. के नोट 7 : 5 : 3 के अनुपात में है। उनका कुल मूल्य 37200 रू. है। 500 रू. के नोट की राशि कितनी है?
(1) Rs. 5000
(2) Rs. 25000
(3) Rs. 15000
(4) Rs. 10000
(5) Rs. 15500
Answer
Q-(1) Sol-(2)
?=15
Q-(2) Sol-(1)
?=7×5=35
Q-(3) Sol-(3)
I. 17x2 +51x - 3x - 9 = 0
17(x+3) -3(x+3) = 0
x=3/17,–3
II. 13y2 - 32y + 12 = 0
13y2 -26y - 6y + 12 = 0
13y(y-2) -6(y-2) = 0
y=6/13,2
x
Q-(4) Sol-(1)
I. 9x2 +6x + 3x +2 = 0
3x(3x+2) +1(3x+2) = 0
x=–1/3,–2/3
II. 12y2 + 29y + 14 = 0
12y2 + 8y + 21y + 14 = 0
4y(3y+2) +7(3y+2) = 0
y=–7/4,–2/3
x>y
Q-(5) Sol-(5)
From eq. (I) and (II)
x = 19
y = 19
x = y
Q-(6) Sol-(2)
I. x4 = 625
x = 5
II.y2 = 25
y = +5, x > y
Q-(7) Sol-(3)
I. 2x2 +4x +7x +14 = 0
2x(x+2) +7(x+2) = 0
x= –3.5,–2
II. 4y2 +6y + 6y + 9 = 0
2y (2y+3) +3(2y+3) = 0
y= –1.5
x < y
Q-(8) Sol-(2)
Marks obtained by Ruchi
=703
Average number=618.5
Q-(9) Sol-(4)
Req. ways =3780
Q-(10) Sol-(3)
Ratio = 100×7:500×5:1000×3
= 700 : 2500 : 3000
= 7:25:30
Req. amount = Rs. 15000
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MAHENDRA GURU