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-(1-5) What value will come in the place of question mark (?) in the following questions?
दिए गए प्रश्नों में प्रश्नवाचक चिह्न (?) के स्थान पर क्या मान आएगा?
(1) (9795 + 7621 +938) ÷ (541 + 831 + 157.5) =?
(1) 6
(2) 10
(3) 12
(4) 15
(5) 18
(2) (576 + 458 + 546) ÷ (51.4 + 11.8) =?
(1) 17
(2) 16
(3) 22
(4) 25
(5) 28
(3) (39.50 + 45.56 – 26.63 – 78.99) =? – 36.23
(1) 8.67
(2) 11.67
(3) 15.67
(4) 21.67
(5) 29.67
(4) (13)^7.2 ÷ (169)^3 ÷ (169)- 0.09 × 2197 = (13)^?
(1) 2.69
(2) 3.89
(3) 4.29
(4) 5.09
(5) 7.99
(5) 10% of 1550 + 50% of 950 =? % of 6300
(1) 8
(2) 10
(3) 14
(4) 17
(5) 20
(6) Ten different letters of alphabet are given, words with 5 letters are formed from these given letters. Then, how many such words can be formed which have at least one letter repeated?
अंग्रजी वर्णमाला के 10 अक्षर चुने जाते हैं , इनका प्रयोग करके 5 अक्षर वाले शब्द बनाये जाते हैं। तो, ऐसे कितने शब्द बन सकते हैं जब कम से कम एक अक्षर पुनराव्रत्ति हो रहा हो?
(1) 67960
(2) 65760
(3) 69790
(4) 69760
(5) 69970
(7) Water flows into a tank which is 200 m long and 150 m wide, through a pipe of cross-section (0.3m x 0.2m) at 20 km/h. In what time will the water level be 8m?
एक टंकी जो 200 मी लम्बी है और 150 मी चौड़ी है में एक नल द्वारा जिसका अनुप्रस्थ क्षेत्रफल (0.3मी x 0.2मी) से प्रवाहित जल की दर 20 किमी/घंटा है, पानी भरा जाता हैं। कितने समय में पानी का स्तर 8 मी. है?
(1) 200
(2) 250
(3) 350
(4) 450
(5) 500
(8) A work is done by three person A, B and C. A alone takes 10 hours to complete the work but B and C working together takes 4 hours, for the completion of the same work. If all of them worked together and completed 14 times of the work, then how many hours have they worked?
एकी कार्य तीन लोग A, B और C। A किसी कार्य को अकेले 10 घंटे में, B और C मिलकर उसी कार्य को 4 घंटे में पूरा करते हैं।यदि ये तीनो मिलकर कार्य करे तो इसी कार्य का 14 गुना कार्य कितने समय में पूरा होगा ?
(1) 40 hr
(2) 20 hr
(3) 42 hr
(4) 28 hr
(5) None of these.
(9) 40% of the employees in a factory are workers. All the remaining employees are executives. The annual income of each worker is Rs. 39000. The annual income of each executive is Rs. 42000. What is the average annual income of all the employees in the factory together?
एक कारखाने में 40% कर्मचारी मजदूर है। शेष बचे कर्मचारी एग्जीक्यूटिव हैं। प्रत्येक मजदूर की वार्षिक आय 39000 रू है और प्रत्येक एग्जीक्यूटिव की वार्षिक आय 42000 रू हैं। कारखाने के सभी कर्मचारियों की औसत वार्षिक आय क्या हैं ?
(1) 40000
(2) 38500
(3) 40800
(4) 41500
(5) None of these
(10) A bag contains 3 white balls and 2 black balls. Another bag contains 2 white and 4 black balls. A bag and a ball are picked random. The probability that the ball will be white is:
एक बैग में 3 सफ़ेद और 2 काली गेंद हैं। दूसरे बैग में 2 सफ़ेद और 4 काली गेंद हैं। एक बैग और एक गेंद चुनी गयी। प्रायिकता की गेंद सफ़ेद है -
(1) 4 / 15
(2) 3 /5
(3) 7/15
(4) 9/16
(5) None of these
Answer Key-
1-Sol-(3)
(9795 + 7621 + 938) ÷ (541 + 831 + 157.5)
= 18354 ÷ 1529.5
= 12
2-Sol-(4)
? = 1580 ÷ 63.2
? = 25
3-Sol-(3)
? = 15.67
4-Sol-(3)
(13)4.29 = (13)?
? = 4.29
5-Sol-(2)
? = 10
6-Sol-(4)
7-Sol-(1)
Volume of water collected in the tank in 11 hour
⇒0.3×0.2×20×1000=1200 m cubic
If after t hours, the water is at height of 8m,
1200t=200×150×8
⇒t = 200 Hours
8-Sol-(1)
20
A = 10--------- 2
B+C = 4 ---------- 5
40 hr
9-Sol-(3)
10-Sol-(3)
The probability of selecting one bag =1/2
Now, probability of getting a white ball from bag A:
=1/2×3/5=3/10
and probability of getting a white ball from bag B:
=1/2×2/6=1/6
Hence, Probability that white ball is drawn either first or second bag:
=3/10+1/6=7/15
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