- 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?
35202542None of theseOption A

Probablity of taking out one black marble=x/(x+15)=4/7

7x=4x+60

x=20

Total =20+15=35 marbles - 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/hr126 km/hr120 km/hr116 km.hrNone of theseOption B

Let speed of train Y be p.

(240+210)/(25+p)=7.5

p=35 m/sec = 35*18/5 - 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 km90 km95 km100 km105 kmOption 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 - 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 theseOption C

MP=805/92 * 100 = Rs 875

Required=(875-700)/700 * 100 = 25% - 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 years25 years27 years28 yearsNnoe of theseOption A
- Study the following and answer the questions:
12 , 42 , 156 , 606 , 2400 , ?

9570968096908505Noneo f theseOption A

(12*4)-6=42

(42*4)-12=156

(156*4)-18=606 - 18 , 9 11 , ? , 109 , 544
26242830None of theseOption C

18*1-9=9

9*2-7=11 - 6 , 8 , 16 , 42 , 122 , ?
360355364370None of theseOption C
- 13 , 21 , 37 , 61 , ? , 133
88939086None of theseOption B
- 14 , 8 , 7 , 11.5 , 22 , ?
5452566065Option C