Numerical Ability for SBI Clerk Prelims Exam 2018: 15h March 2018

Q1. If no. of graduate female students of university S is 2000 and total no. of students of university R is 20% less than that of S, then find the total no. of post graduate students in university R? 
(a) 18 thousand
(b) 15.2 thousand
(c) 25 thousand
(d) 22 thousand
(e) 18.5 thousand

Q2. If post graduate male in university S and P are in ratio 4 : 3, Then no. of students of university S is what percent of that of P? 
(a) 86.75%
(b) 89.25%
(c) 97.25%
(d) 87.5%
(e) 77.5%


Q3. If there are 2.4 thousand post graduate male in university Q and 4 thousand graduate female in university S then find ratio of no. of students in university Q to the no. of students in university S? 
(a) 18 : 125
(b) 18 : 121
(c) 7 : 13
(d) 9 : 121
(e) 125 : 18

 Q4. What is approximate no. of graduate female students of university T if total post graduate female in that university is 1 thousand? (in thousands)
(a) 2.20
(b) 1.13
(c) 1.26
(d) 0.17
(e) 0.98

Q5. If no. of students in universities P and R is 6 and 8 thousand respectively, then graduate female students of university R is what percent less/more than post graduate male students of university P? (rounded off to two decimal places)
(a) 26.13%
(b) 27.74%
(c) 28.89%
(d) 27.25%
(e) 31.50 %

Q6. From the 50 litres of milk, 5 litres of milk is taken out and after it 5 litres of water is added to the rest amount of milk. Again 5 litres of mixture of milk and water is drawn out and it was replaced by 5 litres of water. If this process is continued similarly for the third time, the amount of milk left after the third replacement is:
(a) 45 L
(b) 36.45 L
(c) 40.5 L
(d) 42.5 L
(e) 44 L

Q7. A goldsmith has two qualities of gold, one of 24 carats and another of 32 carats purity. In what proportion should he mix both the type of gold to make an ornament of 30 carats purity? 
(a) 1 : 3
(b) 2 : 3
(c) 3 : 2
(d) 1 : 5
(e) 3 : 5

Directions (8-10): A bag contains 5 white and 6 green balls. 5 balls are drawn at random. Find the probability that 

Q8. 3 white and 2 green balls are chosen. 
(a) 13/18
(b) 14/81
(c) 25/77
(d) 26/77
(e) 17/77

Q9. 2 white and 3 green balls are chosen. 
(a) 13/18
(b) 14/18
(c) 25/77
(d) 100/231
(e) 93/111

Q10. All the 5 balls are of the same colour. 
(a) 1/66
(b) 3/49
(c) 5/66
(d) 1/49
(e) None of these

Directions (11-15): What will come in place of (?) in the following number series?

Q11.  5, 54, 397, 2798,  ?, 137254
(a) 20605
(b) 19910
(c) 19605
(d) 18620
(e) 20520

Q12.  625, 620, 613, 602,  589, 572, ?
(a) 541
(b) 537
(c) 531
(d) 521
(e) 553

Q13.  3, 6, 24, 144,  ?,   11520 
(a) 1158
(b) 1252
(c) 1125
(d) 1152
(e) 1212

Q14.  375000, 15000, 750, 50, 5, ?
(a) 1
(b) 2
(c) 4
(d) 5
(e) 3

Q15.  1, 11, 81, 411, 1241, ?
(a) 1236
(b) 1251
(c) 1273
(d) 1237
(e) 1233

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