### Cocubes Quantitative Aptitude Questions from Previous Year – 1

1. The cost price of 10 articles is equal to the selling price of 9 articles. find the profit percent.

a. 101/9 % b. 100/9 % c. 102/9 % d. 103/9 %

**Ans: 100/9 %**

Let Cost Price be x and selling price be y

Then given that cost price of 10 articles is equal to the selling price of 9 articles

That means 10x=9y

Y= 10x/9

Profit percent = (( selling price – cost price )/cost price ) * 100

= 100/9 %

2. The ratio of radii of two right circular cylinders is 6:7 and their heights are in the ratio 5:9. The ratio of their respective curved surface areas is

a. 14:15 b. 17:19 c. 23:29 d. 10:21

**Ans: 10 : 21**

Curved surface area of a cylinder = 2 * Pi * r * h

Ratio = (6/7) * (5/9) = 10:21

3. In how many ways can the 7 letters A,B,C,D,E,F and G be arranged so that C and E never together.

a. 5040 b. 6480 c. 3600 d. 1440

**Ans: 3600**

C and E never together = Total arrangements – C and E together

Total arrangements are 7!

C and E together = pack c and e into one unit + 5 other alphabets = 6! 2! ( 2! Is two arrange c and e internally)

C and E never together = Total arrangements – C and E together = 7! – 6! 2! = 3600

4. How many numbers are there in all from 4000 to 4999 (both 4000 and 4999 included) having at least one of their digits repeated?

a. 356 b. 216 c. 496 d. 504

**Ans: 496**

Atleast one of their digits repeated = Total numbers – None of the digits repeated

Total numbers from 4000 to 4999 = 1000

None of the digits repeated = _ _ _ _

There are total 4 places

1st place is filled with 4 only. So only one choice

2nd place is filled with any 9 digits except 4 as we have used 4 in 1st place. So 9 choices

Similarly 3rd place is filled with any 8 digits. So we have 8 choices

4th place is filled with any 7 digits. So we have 7 choices.

So total arrangements = 1 * 9 * 8 * 7 = 504

Ans= 1000 – 504 = 496

5. if 1/2x +1/4x+1/8x=14 Then the value of x is:

a. 8 b. 12 c. 4 d. 16

**Ans: x = 16**

6. Which of the following expressions will always be true?

**Ans: D**

Verify from options

**Ans(C)**

a. 0.5 b. none c. 1 d. 0

**Ans(D)**

**Ans: 130 m**

Area of a trapezium = (1/2) (a+b) h

**Ans: 4.59**

from March 3rd to July 27th( In the same year) = 146 days

a. 324 km b. 524 km c. 320 km d. 420 km

**Ans: 324 km**

Let dhruv takes t hours then naksh takes t-3 hours

**Ans: 44 m**

Distance covered in one revolution is equal to wheel surface area = 2 * Pi * r

a. 2 days b. 3 days c. 4 days d. 5 days

**Ans: 3 days**

P can do in 5* 8 hours= 40 hours

**Ans: 20 * 4 * 3 = 240 gm**

16. if the antecedent and consequent of a ratio are increased by 5 and 6 respectively then the ratio is 5:6. find the original ratio. a. 5:6 b. 1:2 c. 2:3 d. 3:4

**Ans: x is the speed of rahul then (x+4) will be rohit speed**

a. 70 days b. 75 days c. 80 days d. 60 days

**Ans: 35 days worked together + 21 days abhimayu worked = finished the work**

35(1/50) + 21(x) = 1

### Cocubes Computer fundamentals Questions

- Cocubes Computer Fundamentals Questions Set 1
- Cocubes Computer Fundamentals Most Likely Questions 2016 – 300+(paid)

### Cocubes English Questions

- CoCubes English Most Likey Questions 2016 – 300+ Questions(Paid)
- Cocubes English Questions Set 1
- Cocubes English Questions Set 2
- Cocubes English Questions Set 3

### Cocubes Reasoning(Analytical) Questions

### Cocubes Coding questions

1. Reverse array

2. Second Largest Number

3. Find sum leaving row and column