Math BODMAS HCF LCM - YLB Online Educational Forum

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

A.543

B.637

C.None of them

D.675

2. Find HCF 154, 87

A.None of them

B.2

C.1

D.8

3. Find HCF 96, 54, 75

A.0

B.3

C.None of them

D.8

4. 80+[20 x { 20-(10 ÷5) }]

A.770

B.440

C.None of them

D.551

5. 7614 +832 x 48 ÷ 16- 8

A.10343

B.10102

C.None of them

D.6755

6. 12- [20 ÷{8-2(9-5-2)}]

A.8

B.3

C.7

D.None of them

7. 3 [3 + 3 {42 – 2 (13 +3)}]

A.None of them

B.88

C.99

D.55

8. Find the Least Common Multiple (LCM) 45.90.15

A.None of them

B.90

C.80

D.70

9. Find HCF 84, 96, 63

A.9

B.None of them

C.3

D.2

10. [{64-(12+13)}÷3]+15

A.None of them

B.87

C.34

D.28

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

A.870

B.480

C.443

D.None of them

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

A.3278

B.3589

C.1092

D.None of them

13. Which two fractions are equivalent?

A.4/3 and 8/6

B.1/4 and 2/4

C.5/2 and 2/5

D.None of them

14. 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.None of them

C.1/4

D.1/3

15. 15-[16-{12+21÷(9-2)}]

A.14

B.11

C.21

D.None of them

16. 18-3+33of3÷99-1

A.2.5

B.14

C.15

D.None of them

17. 4+4+4+4 ÷ 4

A.13

B.25

C.12

D.None of them

18. 5 x 50 +57 -57 ÷ 57

A.306

B.404

C.None of them

D.654

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

A.33480

B.44778

C.22167

D.None of them

20. Find HCF 78, 52, 23

A.None of them

B.1

C.4

D.3