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(78. 95)^2-(43. 35)^2=? (a) 4148 (b)...

`(78. 95)^2-(43. 35)^2=?` (a) 4148 (b) 4235.78 (c) 4305 (d) 4353.88 (e) None of these

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RS AGGARWAL-DECIMAL AND FRACTIONS-All Questions
  1. The value of ((. 896xx. 763+. 896xx. 237)/(. 7xx. 064+. 7xx. 936)) ...

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  2. The value of (1. 25)^3-2. 25\ (1. 25)^2+3. 75\ (0. 75)^2-(0. 75)^3 ...

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  3. (78. 95)^2-(43. 35)^2=? (a) 4148 (b) 4235.78 (c) 4305 (d) 4353....

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  4. The value of ((75. 8)^2-(55. 8)^2)/(20) is (a) 20 (b) 40 (c) 121.6 ...

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  5. ((3. 63)^2-(2. 37)^2)/(3. 63+2. 37) is simplified to (a) 1.26 (b...

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  6. ((36. 54)^2-(3. 46)^2)/?=40 (a) 3.308 (b) 4 (c) 33.08 (d) 330.8

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  7. The value of ((67. 542)^2-(32. 458)^2)/(75. 458-40. 374) is (a) 1 (...

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  8. ((1. 49xx14. 9-0. 51xx5. 1)/(14. 9-5. 1)) is equal to (a) 0.20 (b) ...

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  9. (4. 2xx4. 2-1. 9xx1. 9)/(2. 3xx6. 1)=? (a) 0.5 (b) 1 (c) 1.9 (d) 4...

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  10. Simplify: (5. 32xx56+5. 32xx44)/((7. 66)^2-(2. 34)^2) (a) 7.2 (b) ...

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  11. ((0. 6)^4-(0. 5)^4)/((0. 6)^2+(0. 5)^2) is equal to (a) 0.1 (b) 0.1...

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  12. (7. 5xx7. 5+37. 5+2. 5xx2. 5) is equal to (a) 30 (b) 60 (c) 80 (d) 100

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  13. The simplification of (0. 2xx0. 2+0. 02xx0. 02-0. 4xx0. 02)/(0. 36)...

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  14. (99. 75)^2-2250. 0625=? (a) 6545.625 (b) 7700 (c) 8875 (d) 9900.62...

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  15. (55. 25)^2-637. 5625=? (a) 25.25 (b) 625 (c) 1375 (d) 2415 (e) Non...

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  16. (3. 25xx3. 20-3. 20xx3. 05)/(0. 064) is equal to (a) 1 (b) 1/2 (c) 1/(...

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  17. The value of (. 98)^3+(. 02)^3+3xx. 98xx. 02-1 is (a) 0 (b) 1 (c) 1...

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  18. The expression (11. 98xx11. 98+11. 98xxx+0. 02xx0. 02) will be a ...

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  19. The value of ((2. 697-0. 498)^2+(2. 697+0. 498)^2)/(2. 697xx2. 697+...

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  20. The value of ((0. 137+0. 098)^2-(0. 137-0. 098)^2)/(0. 137xx0. 098)...

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