Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

131.

Using identities, evaluate:

998²

160 Views

132.

Using identities, evaluate:

5.2²

147 Views

133.

Using identities, evaluate:

^{297 x 303}

609 Views

∵ 78 = 80 - 2 and 82 = 80 + 2

∴ 78 x 82 = (80 - 2) (80 + 2)
              = (80)²- (2)²    [Using (a + b)(a - b) = a²-b²]
              = 6400 - 4
              = 6396

375 Views

135.

Using identities, evaluate:

^{78 x 82}

94 Views

136.

Using identities, evaluate:

^{8.9 = (9 - 0.1)}

146 Views

137.

Using identities, evaluate:

^{1.05 = (1 - 0.05) x 9.5}

651 Views

138.

Using a² – b² = (a + b)(a – b), find:

51²- 49²

117 Views

139.

Using a² – b² = (a + b)(a – b), find:

(1.02)²- (0.98)²

313 Views

140.

Using a² – b² = (a + b)(a – b), find:

153²- 147²

119 Views