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KENDRIYA VIDYALAYA KANJIKODE 2015-16
HOLIDAY HOMEWORK (Maths) – Class VII
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6. In a quiz, positive marks are given for correct answers and negative marks are given for incorrect
answers. If John’s scores in five successive rounds were 25, – 5, – 10, 15and 10, what was his
total at the end?
7. (–15) × [(–7) + (–1)] = _________
8. Find:
a. 90 ÷ (– 45)
b. (–136) ÷ 4
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13. Each side of a regular polygon is 2.5 cm in length. The perimeter of the polygon is 12.5 cm. How
many sides does the polygon have?
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16. Write the equation for ‘One third of a number plus 5 is 8.
17. Laxmi’s father is 49 years old. He is 4 years older than three times Laxmi’s age. (Take Laxmi’s
age to be y years.) Set up an equation
18. What is y in 10y – 20 = 50?
19. Write the equation for ‘The sum of two times y and 10 is 42
20. In Equation 6x + 7 = 19, the L.H.S. is ________.
21. Do as directed :
1. Find the perimeter of the following :
a. Rectangle whose l = 5cm and b = 4cm.
b. Square whose side = 15cm
c. A regular hexagon, side = 7.2cm
d. Equilateral triangle , side =5cm
22. Find the side of the square whose perimeter is
a)22cm b)16cm.
23.
Find the perimeter of a rectangle whose area is 650 sq.cm and its breadth is 13cm.
24. The side of a square is 70cm. Find its area and perimeter.
25. .Write all the factors of following numbers
i) 64 ii) 86 iii) 94 iv) 17 v) 112
26.
Write all the prime numbers less than 25.
27. Find common factors of a) 75, 60 & 210 b) 72 & 80 c) 18, 24 & 30
d) 30,45 & 75
29. Find LCM of :- a) 12 & 18
b) 20, 24 & 45
c) 16 & 24
d) 20, 25 & 30
30. Find HCF of:- a) 12, 15 & 30
b) 36 & 45
c) 18, 54 & 81
d) 49, 91 & 11
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