## The smallest number when increased by ” 1 ” is exactly divisible by 12, 18, 24, 32 and 40 is__________?

**A. 1439**

B. 1440

C. 1459

D. 1449

Explanation:

LCM = 1440

1440 – 1 = 1439…

**A. 1439**

B. 1440

C. 1459

D. 1449

Explanation:

LCM = 1440

1440 – 1 = 1439…

**A. 31**

B. 41

C. 51

D. 61

Explanation:

LCM = 30 => 30 + 1 = 31…

A. 1994

B. 1494

**C. 1349**

D. 1496

LCM = 1400

1400 – 6 = 1394…

A. 1080

**B. 10080**

C. 10025

D. 11080

Explanation:

LCM = 180

180) 10000 (55

9900

———

100

10000 + 180 – 100 = 10080…

A. 36

B. 66

**C. 132**

D. 264

Explanation:

12 * 396 = 36 * x

x = 132…

A. 3600

B. 504

C. 441

**D. 7056**…

A. 700,400

B. 820,360

C. 800,500

**D. 820,369**…

A. 39

B. 40

**C. 37**

D. 35

Explanation:

HCF of 1189, 1073 = 29

1073/29 = 37…

**A. 3**

B. 4

C. 5

D. 6

HCF of 4956, 3894 = 354

(4956 – 3894)/354 = 3…