Page 118 - Maths Skills - 7

116 Maths

ASSESSMENT - 2

(For Chapters 4 to 6)

COMPETENCY BASED QUESTIONS

Multiple-Choice Questions

1. If –3 × p = 1 then p is equal to:
4 q q
(a) –3 (b) 3 (c) 4 (d) 4
4 –4 3 –3
2. The ratio of 500 g to 3 kg is:

(a) 1:6 (b) 6:1 (c) 500:3 (d) 3:500
3. Which of the following is a correct statement?
(a) S.P. = C.P. + Loss (b) S.P. = C.P. – profit (c) C.P. = S.P. – Loss (d) S.P. = C.P. + profit

4. If 25% of x is 9, then x is:
(a) 36 (b) 27 (c) 45 (d) 18

5. Find the value of: (2 ÷ 2 ) × (2 ÷ 2 )
10
5
4
8
(a) 2 (b) 1 (c) 2 (d) 2 2
9
2
Fill in the Blanks
12 4  3 15  − 1
6. = = 7.  ×  = ___________.
60 30  − 5 27 
8. if a:b::b:c, then b = ___________. 9. If 5 = 625; then x = __________.
2
x
10. (–4) × (–4) = (–4) ; then x = __________.
3
x
6
Write ‘T’ for true and ‘F’ for false Statements
11. Every positive rational number is smaller than 0.
12. x is called the exponential notation where ‘x’ is the base and ‘n’ is the exponent/power/index.
n
13. An equality relation between two ratios is called proportion.
14. Profit = C.P. – S.P., if S.P. < C.P.
15. Simple interest is calculated on the original principal throughout the loan period.

Case Study Based Questions

On our planet, earth approximately 71% is covered with water and 29% by land. Out of this same area is
covered by desert in different continents. The deserts of world are given in the following table.
S. No Desert of world Area (sq. km)
1. Kalahri, South Africa 932400
2. Thar, India 199430
3. Gibson, Australia 155400
4. Great Victoria, Australia 647500
5. Sahara, North Africa 8598800