| Section $'A'$ | Section $'B'$ | Answer |
| $( 1 )0^{\circ}$ to $90^{\circ}$ | $( a )$ Zero angle | $(1-$________$)$ |
| $(2) 90^{\circ}$ to $180^{\circ}$ | $( b )$ Right angle | $(2-$________$)$ |
| $( 3 ) 180^{\circ}$ to $360^{\circ}$ | $( c )$ Straight angle | $(3-$________$)$ |
| $(4) O ^{\circ}$ | $(d)$ Obtuse angle | $(4-$________$)$ |
| $( 5 ) 90^{\circ}$ | $(e )$ Acute angle | $(5-$________$)$ |
| $( 6) 180^{\circ}$ | $( f )$ Reflex angle | $(6-$________$)$ |
| $( 7 ) 360^{\circ}$ | $(g)$ Complete angle | $(7-$________$)$ |
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| (a) The value of x is | (i) $80^{\circ}$ |
| (b) The value of y is | (ii) $40^{\circ}$ |
| (c) The value of z is | (iii) $20^{\circ}$ |
| (d) The value of x + y – z is | (iv) $60^{\circ}$ |
| Situation | Expression |
| (a) Her brother is 4 years younger than her. | (i) x + 27 |
| (b) Her father’s age exceeds her age by 30 years. | (ii) 9x |
| (c) Mother’s age is 3 years less than that of her father. | (iii) 9x – 4 |
| (d) Her grandfather’s age is 9 times of her age. | (iv) x + 30 |
| (e) Her grandmother’s age is 4 years less than her grandfather. | (v) x – 4 |
| Column A | Column B |
| (a) Arithmetic mean | (i) Highest frequency |
| (b) Range | (ii) Middle observation |
| (c) Median | (iii) $\frac{\text { Sum of all observations }}{\text { Number of observations }}$ |
| (d) Mode | (iv) Highest observation - Lowest observation |
| Column A | Column B | ||
| (i) | 5% of 40 | (a) | $66 \frac{2}{3} \%$ |
| (ii) | 0.25 | (b) | 1:16 |
| (iii) | $\frac{2}{3}$ | (c) | 2 |
| (iv) | $6 \frac{1}{4} \%$ | (d) | 25% |
| Column A | Column B |
| (i) $\frac{a}{b} \div \frac{a}{b}$ | (a) $\frac{-a}{b}$ |
| (ii) $\frac{a}{b} \div \frac{c}{d}$Z | (b) -1 |
| (iii) $\frac{a}{b} \div(-1)$ | (c) 1 |
| (iv) $\frac{a}{b} \div \frac{-a}{b}$ | (d) $\frac{a d}{b c}$ |
| Column A | Column B | ||
| (i) | $4 \frac{6}{9} \div\frac{1}{81}$ | (a) | 378 |
| (ii) | $7 \frac{5}{6} \times \frac{3}{47} \times 46$ | (b) | 20.6 |
| (iii) | $9.42 \times 5.45$ | (c) | 23 |
| (iv) | $14.42 \div 0.7$ | (d) | 51.339 |
| Column A | Column B |
| (i) Simple Interest | (a) $\frac{\text { Loss }}{\text { Cost Price }} \times 100$ |
| (ii) Profit % | (b) Expenditure + Saving |
| (iii) Loss % | (c) $\frac{P \times R \times T}{100}$ |
| (iv) Income | (d) $\frac{\text { Profit }}{\text { Cost Price }} \times 100$ |
| Column A | Column B |
| (i) Complement of $32^{\circ}$ | (a) $100^{\circ}$ |
| (ii) Complement of $42^{\circ}$ | (b) $58^{\circ}$ |
| (iii) Supplement of $80^{\circ}$ | (c) $48^{\circ}$ |
| (iv) Supplement of $81^{\circ}$ | (d) $99^{\circ}$ |