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(65)^2-(55)^2=? 10 (b) 100 (c) 12...

`(65)^2-(55)^2=?` 10 (b) 100 (c) 120 (d) 1200

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(80)^2-(65)^2+81=? 306 (b) 2094 (c) 2175 (d) 2256 None of these

Find x if x/5-x/6=4 . (a)-120 (b) -100 (c) 100 (d) 120

The number of terms in te expansion of (1+5x+10x^2+10x^3+x^5)^20 is (A) 100 (B) 101 (C) 120 (D) none of these

If 1/5-1/6=4/x , then x= -120\ (b) -100 (c) 100 (d) 120

2+3/(10)+4/(100)=\ ? 2.304 (b) 0.403 (c) 2.34 (d) 2.43

In Fig.105, If A O B and C O D are straight lines. Then x+y= (a) 120 (b) 140 (c) 100 (d) 160

For any 2xx2 matrix, if A\ (a d j\ A)=[10 0 0 10] , then |A| is equal to (a) 20 (b) 100 (c) 10 (d) 0

Line segments A B a n d C D intersect at O such that A C D Bdot If /_C A B=45^0a n d /_C D B=55^0, then /_B O D= 100^0 (b) 80^0 (c) 90^0 (d) 135^0

If 0.13+p^(2)=13, then p equals (a) 0.01 (b) 0.1(c)10(d)100

2, 9, 28, 65, 126, 216, 344 (a) 2 (b) 28 (c) 65 (d) 126 (e) 216

RS AGGARWAL-NUMBER SYSTEM-All Questions
  1. (80)^2-(65)^2+81=? 306 (b) 2094 (c) 2175 (d) 2256 None of these

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  2. (24+25+26)^2-(10+20+25)^2=? 352 (b) 400 (c) 752 (d) 2600 None o...

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  3. (65)^2-(55)^2=? 10 (b) 100 (c) 120 (d) 1200

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  4. If a and b be positive integers such that a^2-b^2=19 , then the value ...

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  5. If a\ a n d\ b are positive integers, a\ >\ b and (a+b)^2-(a-b)^2> 29 ...

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  6. 397xx397+104xx104+2xx397xx104=? 250001 (b) 251001 (c) 260101 (d...

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  7. If (64)^2-(36)^2=20xxx\ t h e n\ x=? 70 (b) 120 (c) 180 (d) 140...

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  8. ((489+375)^2-\ (489-375)^2=?)/((489xx375)) 144 (b) 864 (c) 2 (d...

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  9. ((963+476)^2+\ (963-476)^2)/((963xx963+\ 476xx476))=? 2 (b) 4 (c) ...

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  10. (768×768×768+232×232×232)/(786×768−768×232+232×232) =? (a) 1000       ...

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  11. (854×854×854−276×276×276)/(854×854+854×276+276×276)=? (a) 1130        ...

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  12. (753×753+247×247−753×247)/(753×753×753+247×247×247)=? (a) 1/1000 (b) 1...

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  13. (256×256−144×144)/112 is equal to (a) 420        (b)  400     (c)  ...

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  14. If a=11\ and\ b=9,\ then the value of ((a^2+b^2+a b)/(a^3-b^3)) is (a...

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  15. If a+b+c=0,\ (a+b)(b+c)(c+a) equals (a) a b\ (a+b) (b) (a+b+c)^2 (c) -...

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  16. If a=7,\ b=5,\ c=3, then the value of a^2+b^2+c^2-a b-b c-c a\ i s -1...

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  17. Both addition and multiplication of numbers are operations which ar...

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  18. Which of the following digits will replace the H marks in the follo...

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  19. Find the missing number in the following addition problem: Figure 0...

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  20. What number should replace M in this multiplication problem? Figure 0 ...

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