Page 96 - Math Skill - 4

94 Maths

SKILL BASED QUESTIONS

Case Study

2
One day, Rekha saw her almirah and she found that part of almirah was occupied by Text Books
1 5
and part of almirah was occupied by Note Books and remaining part of almirah was occupied
5

by her clothes.
Answer the following questions on the basis of the above data.
14. What part of almirah was covered by her cloths?
1 2
(a) (b)
5 5
3
(c) (d) none of these
5
15. Rekha wants to extend the space for Text Books. So she takes 1 part of the space occupied
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by cloths. Now, what fraction of the space occuped by Text Books?
11 13
(a) (b)
25 25
9
(c) (d) none of these
25

SUBJECTIVE BASED QUESTIONS
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16. Renu has completed of her homework. What part of her work is left?
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1
17. Jyoti completed her maths homework in hour and Science homework in 3 hour. How
6 10
much time did she take in all to complete both?

1 2 1
18. Arrange the fractions in ascending order : , and .
6 3 4
19. Find two pairs of prime numbers which differ by two.
20. Find the H.C.F. of 5, 10 and 15.

21. Find the common multiples and L.C.M. of 2, 3 and 4.

22. Find the prime factorisation of 56.

23. Write all the composite numbers between 20 and 50.
24. Which is the only even prime number?

25. Write all the prime numbers between 20 and 40.