# Maths is the compulsory subject in different education field. It is also necessary for various jobs in Pakistan. We provides Mcqs bases online quiz in different topics such as Basic Maths, Numbers, Root & Cube, Equation, Fraction, Average, Triangle, Distance, Simplification, Ratio, Square Root, Percentage and Decimals etc which will help you to improve your knowledge. Attempt the Free Online Test Quiz below which is sequentially given according to different topics.

Maths Problems on L.C.M and H.C.F Test.9

**Quiz Instructions:**

- There will be 20 multiple choice question in this online test.
- Answer of the questions will change randomly each time you start this test.
- Practice this test at least 3 times if you want to secure High Marks.
- At the End of the Test you can see your Test score and Rating.

1 / 20

**Find the least square number which is divisible by 10, 12, 15 and 18?**

2 / 20

**Three men start together to travel the same way around a circular track of 11 kilometers in circumference. Their speeds are 4, 5 and 8 kilometers per hour respectively. When will they meet at a starting point?**

3 / 20

**Find the least multiple of 13 which when divided by 6, 8 and 12 leaves 5, 7 and 11 as remainders respectively? A. 143 B. 169 C. 260 D. 221**

4 / 20

**Find the least number which when divided by 6, 7, 8, 9 and 10 leaves 1, 2, 3, 4 and 5 as remainders respectively, but when divided by 19 leaves no remainder?**

5 / 20

**Find the least number which when divide by 2, 3, 4, 5 and 6 leaves 1, 2, 3, 4 and 5 as remainders respectively, but when divided by 7 leaves no remainder?**

6 / 20

**A heap of stones can be made up into groups of 21. When made up into groups of 16, 20, 25 and 45 there are 3 stones left in each case. How many stones at least can there be in the heap?**

7 / 20

**Find the greatest number of four digits which when divided by 10, 15, 21 and 28 leaves 4, 9, 15 and 22 as remainders respectively?**

8 / 20

**Find the least number which when divided by 35 leaves remainder 25, when divided by 25 leaves remainder 15 and when divided by 15 leaves remainder 5?**

9 / 20

**What is the least number which when divided by 8, 12, 18 and 24 leaves the remainders 4, 8, 14 and 20 respectively?**

10 / 20

**Two numbers 4242 and 2903 when divided by a certain number of three digits, leave the same remainder. Find the number?**

11 / 20

**The wheels revolve round a common horizontal axis. They make 15, 20 and 48 revolutions in a minute respectively. Starting with a certain point on the circumference down wards. After what interval of time will they come together in the same position?**

Explanation:

Time for one revolution = 60/15 = 4

60/ 20 = 3

60/48 = 5/4

LCM of 4, 3, 5/4

LCM of Numerators/HCF of Denominators =

60/1 = 60

Explanation:

Time for one revolution = 60/15 = 4

60/ 20 = 3

60/48 = 5/4

LCM of 4, 3, 5/4

LCM of Numerators/HCF of Denominators =

60/1 = 60

12 / 20

**There are four prime numbers written in ascending order of magnitude. The product of the first three is 385 and of the last three is 1001. Find the fourth number?**

13 / 20

**There are four prime numbers written in ascending order of magnitude. The product of the first three is 7429 and of the last three is 12673. Find the fourth number?**

Explanation:

(7429/12673) = 17/29 Fourth Number is 29

Explanation:

(7429/12673) = 17/29 Fourth Number is 29

14 / 20

**How many minimum number’s of whole square slabs are required for paving the floor 12.96 meters long and 3.84 meters side?**

15 / 20

**A room is 4 meters 37 cm long and 3 meters 23cm broad. It is required to pave the floor with minimum square slabs. Find the number of slabs required for this purpose?**

Explanation:

HCF of 323, 437 = 19

323 * 437 = 19 * 19 * x

x = 391

Explanation:

HCF of 323, 437 = 19

323 * 437 = 19 * 19 * x

x = 391

16 / 20

**Find the size of the largest square slabs which can be paved on the floor of a room 5 meters 44 cm long and 3 meters 74 cm broad?**

Explanation:

HCF of 374, 544 = 34

Explanation:

HCF of 374, 544 = 34

17 / 20

**A wholesale tea dealer 408 kilograms, 468 kilograms and 516 kilograms of three different qualities of tea. He wants it all to be packed into boxes of equal size without mixing. Find the capacity of the largest possible box?**

Explanation:

HCF of 408, 468, 516 = 12

Explanation:

HCF of 408, 468, 516 = 12

18 / 20

**A merchant has three different types of milk: 435 liters, 493 liters and 551 liters. Find the least number of casks of equal size required to store all the milk without mixing.**

Explanation:

HCF of 435, 493, 551 = 29

(453/29) + (493/29) + (551/29) = 51

Explanation:

HCF of 435, 493, 551 = 29

(453/29) + (493/29) + (551/29) = 51

19 / 20

**Find the greatest number which is such that when 697, 909 and 1227 are divided by it, the remainders are all the same?**

20 / 20

**Find the greatest number which will divide 25, 73 and 97 as so to leave the same remainder in each case?**