# Quant Test for SBI PO Prelims 2020 Exam set – 18

1. There are ‘x’ number of black and 15 white marbles in a bag.The probablity of taking out one black marble is 4/7.What is the total number of marbles in bag?
35
20
25
42
None of these
Option A
Probablity of taking out one black marble=x/(x+15)=4/7
7x=4x+60
x=20
Total =20+15=35 marbles

2. The length of train X is 240 m and its speed is 25m/s.It croesses atrain Y of length 210 m in 7.5 seconds.What is the speed of train Y?
124 km/hr
126 km/hr
120 km/hr
116 km.hr
None of these
Option B
Let speed of train Y be p.
(240+210)/(25+p)=7.5
p=35 m/sec = 35*18/5

3. P and Q start at the same time with speed of 60 km/hr and 80km/hr respetively.In covering the journey P takes 20 minutes more than Q.What is the total distance of journey?
80 km
90 km
95 km
100 km
105 km
Option A
Ratio of speeds=3:4
Ratio of time taken by them=4:3
Time taken by Q to complete the journey=20/1 *3 =60 min = 1 hour
Distance=80 km

4. The selling price of an item after a discount of 8% is Rs 805.If the CP of the item is Rs 700,then MP of the item is what percent more than CP of item?
30%
35%
25%
45%
None of these
Option C
MP=805/92 * 100 = Rs 875
Required=(875-700)/700 * 100 = 25%

5. The average of present ages of Akansha and Caryl is 32 years and Caryl is 14 years older than Banya.The ratio of present age of Akansha to present age of Banya is 14:11.What is the prsent age of Banya?
22 years
25 years
27 years
28 years
Nnoe of these
Option A

6. Study the following and answer the questions:

12 , 42 , 156 , 606 , 2400 , ?

9570
9680
9690
8505
Noneo f these
Option A
(12*4)-6=42
(42*4)-12=156
(156*4)-18=606

7. 18 , 9 11 , ? , 109 , 544
26
24
28
30
None of these
Option C
18*1-9=9
9*2-7=11

8. 6 , 8 , 16 , 42 , 122 , ?
360
355
364
370
None of these
Option C

9. 13 , 21 , 37 , 61 , ? , 133
88
93
90
86
None of these
Option B

10. 14 , 8 , 7 , 11.5 , 22 , ?
54
52
56
60
65
Option C