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## Friday, August 26, 2011

### Sample Question Paper Class 10 Mathematics SA-1

1. ABC is right angled at A. The value of tan B . tan C is _______
(a) tan B                      (b) tan C                     (c) 0                            (d) 1
2. If the mean of 2, 4, 6, 8, 10, x, 14, 16 is 9 then the value of x is
(a) 10                           (b) 11                           (c) 12                           (d) 13
3. The relationship in mean, median and mode is
(a) Mode = 2 median – 3 mean                      (b) Mode = 2 median - mean
(c) Mode = 3 median + 2 mean                       (d) Mode = 3 median – 2 mean
4. If x = tan 2° · tan 36° · tan 54° · tan 88° then the value of x is ______
(a) 45°                                     (b) 1                             (c) 2                             (d) 90°
5. Which of these numbers always ends with the digit 6? Where n is a natural number.

(a) 4n                           (b) 2n                          (c) 6n                           (d) 8n

6. For a pair to be consistent and dependent the pair must have
(a) no solution                         (b) unique solution       (c) infinitely many solutions (d) none of these
7. Graph of every linear equation in two variables represents a ___
(a) point                       (b) straight line                        (c) curve         (d) triangle
8. If in ABC, AB = 6 cm, BC = 12cm and CA= 6 √3 cm then the measure of A is
(a) 30°                                     (b) 45°                         (c) 60°                         (d) 90°
9. The area of two similar triangles are in the ratio 9 : 16. The corresponding sides must be in the
ratio ______
(a) 9 : 16                      (b) 16 : 9                      (c) 3 : 4            (d) 4 : 3
10. If sin (90 – q) cosq = 1 and q is an acute angle then = ____
(a) 90°                                     (b) 60°                         (c) 30°                         (d) 0°