Math BODMAS HCF LCM - YLB Online Educational Forum

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1. Find the Least Common Multiple (LCM) 12,84,91

A.3589

B.1092

C.None of them

D.3278

2. 18-3+33of3÷99-1

A.15

B.None of them

C.14

D.2.5

3. Find HCF 78, 52, 23

A.1

B.4

C.3

D.None of them

4. Find HCF 96, 54, 75

A.8

B.None of them

C.3

D.0

5. 80+[20 x { 20-(10 ÷5) }]

A.440

B.770

C.None of them

D.551

6. Find HCF 84, 96, 63

A.3

B.9

C.2

D.None of them

7. 3 [3 + 3 {42 – 2 (13 +3)}]

A.55

B.88

C.None of them

D.99

8. Find the Least Common Multiple (LCM) 12,32,40

A.870

B.443

C.480

D.None of them

9. 7614 +832 x 48 ÷ 16- 8

A.10102

B.6755

C.10343

D.None of them

10. Find the Least Common Multiple (LCM) 40,54,62

A.33480

B.22167

C.None of them

D.44778

11. Find the Least Common Multiple (LCM) 45.90.15

A.70

B.80

C.90

D.None of them

12. 15-[16-{12+21÷(9-2)}]

A.11

B.21

C.14

D.None of them

13. It takes Julia 1/2 hour to wash, comb her hair and put on her clothes, and 1/4 hour to have her breakfast. How much time does it take Julia to be ready for school?]

A.3/4

B.1/3

C.None of them

D.1/4

14. Find HCF 154, 87

A.1

B.2

C.None of them

D.8

15. 12- [20 ÷{8-2(9-5-2)}]

A.7

B.None of them

C.8

D.3

16. 5 x 50 +57 -57 ÷ 57

A.306

B.404

C.None of them

D.654

17. Which two fractions are equivalent?

A.1/4 and 2/4

B.4/3 and 8/6

C.None of them

D.5/2 and 2/5

18. [{64-(12+13)}÷3]+15

A.None of them

B.28

C.34

D.87

19. Find the Least Common Multiple (LCM) 91,49,7

A.543

B.None of them

C.637

D.675

20. 4+4+4+4 ÷ 4

A.13

B.25

C.None of them

D.12