**APTITUDE QUIZ**

**Q.1.Find the greatest number that will divide 43, 91 and 183 so as to leave the same remainder in each case.**

A.4

B.7

C.9

D.13

**Q.2. The H.C.F. of two numbers is 23 and the other two factors of their L.C.M. are 13 and 14. The larger of the two numbers is:**

A.276

B.299

C.322

D.345

**Q.3. Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?**

A.4

B.10

C.15

D.16

**Q.4. Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Then sum of the digits in N is:**

A.4

B.5

C.6

D.8

**Q.5.The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:**

A.9000

B.9400

C.9600

D.9800

**Q.6. The product of two numbers is 4107. If the H.C.F. of these numbers is 37, then the greater number is:**

A.101

B.107

C.111

D.185

**Q.7. Three number are in the ratio of 3 : 4 : 5 and their L.C.M. is 2400. Their H.C.F. is:**

A.40

B.80

C.120

D.200

**Q.8.The G.C.D. of 1.08, 0.36 and 0.9 is:**

A.0.03

B.0.9

C.0.18

D.0.108

**Q.9. The product of two numbers is 2028 and their H.C.F. is 13. The number of such pairs is:**

A.1

B.2

C.3

D.4

**Q.10. The least multiple of 7, which leaves a remainder of 4, when divided by 6, 9, 15 and 18 is:**

A.74

B.94

C.184

D.364

**Q.11. Find the lowest common multiple of 24, 36 and 40.**

A.120

B.240

C.360

D.480

**Q.12. The least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3 is:**

A.3

B.13

C.23

D.33

**Q.13. The least number which when divided by 5, 6 , 7 and 8 leaves a remainder 3, but when divided by 9 leaves no remainder, is:**

A.1677

B.1683

C.2523

D.3363

**Q.14. A, B and C start at the same time in the same direction to run around a circular stadium. A completes a round in 252 seconds, B in 308 seconds and c in 198 seconds, all starting at the same point. After what time will they again at the starting point ?**

A.26 minutes and 18 seconds

B.42 minutes and 36 seconds

C.45 minutes

D.46 minutes and 12 seconds

**Q.15. The H.C.F. of two numbers is 11 and their L.C.M. is 7700. If one of the numbers is 275, then the other is:**

A.279

B.283

C.308

D.318

**Q.16. What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30 ?**

A.196

B.630

C.1260

D.2520

**Q.17. The ratio of two numbers is 3 : 4 and their H.C.F. is 4. Their L.C.M. is:**

A.12

B.16

C.24

D.48

**Q.18. The smallest number which when diminished by 7, is divisible 12, 16, 18, 21 and 28 is:**

A.1008

B.1015

C.1022

D.1032

**Q.19. 252 can be expressed as a product of primes as:**

A.2 x 2 x 3 x 3 x 7

B.2 x 2 x 2 x 3 x 7

C.3 x 3 x 3 x 3 x 7

D.2 x 3 x 3 x 3 x 7

**Q.20. The greatest possible length which can be used to measure exactly the lengths 7 m, 3 m 85 cm, 12 m 95 cm is:**

A.15 cm

B.25 cm

C.35 cm

D.42 cm

**-:ANSWERS:-**

**1.Answer:** Option A

**2.Answer:** Option C

**3.Answer:** Option D

**4.Answer:** Option A

**5.Answer:** Option C

**6.Answer:** Option C

**7.Answer:** Option A

**8.Answer:** Option C

**9.Answer:** Option B

**10.Answer:** Option D

**11.Answer:** Option C

**12.Answer:** Option C

**13.Answer:** Option B

**14.Answer:** Option D

**15.Answer:** Option C

**16.Answer:** Option B

**17.Answer:** Option D

**18.Answer:** Option B

**19.Answer:** Option A

**20.Answer:** Option C