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How many positive integey x ae there suc...

How many positive integey x ae there such that 3x has 3 digits and 4x has four digits ?

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`{:(8.,84,9.,47,10.,3):}`
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How many positive integer x are there such that 3X has 3 digits and 4X has 4 digits.

How many four digit numbers are there in all?

How many four digit numbers are there with distinct digits?

a. How many two digit positive integers are multiples of 3? b. What is the probability that a randomly chosen two digit positive integer is a multiple of 3?

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(i) How many three - digit numbers are there, with no digit repeated ? (ii) How many four - digit numbers are there, with no digit repeated ? (iii) How many natural numbers from 1 to 1000 have none of their digits repeated ?

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RESONANCE-DPP-QUESTION
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  2. Write the following sets in the set builder from : {:((i), 0={0),(i...

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  3. How many positive integey x ae there such that 3x has 3 digits and 4x ...

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  4. If a and b are positive integers such that a^(2)-b^(4)=2009, find a+b

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  5. Find the number of positive integers x for which f(X)=x^(3)-8x^(2)+20x...

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  6. If a is defined by f (x)=a(0)x^(n)+a(1)x^(n-2)+a(2)x^(n-2)+...+a(n-1)x...

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  7. If a is defined by f (x)=a(0)x^(n)+a(1)x^(n-2)+a(2)x^(n-2)+...+a(n-1)x...

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  8. If a is defined by f (x)=a(0)x^(n)+a(1)x^(n-2)+a(2)x^(n-2)+...+a(n-1)x...

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  9. If a is defined by f (x)=a(0)x^(n)+a(1)x^(n-2)+a(2)x^(n-2)+...+a(n-1)x...

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  10. Which of the following conditions imply that the real number x is rati...

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  11. Let N=(2+1)(2^(2)+1)(2^(4)+1)......(2^(32)+1)+1and n2^(lamda)"then the...

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  12. If (x+y)^(2)=2(x^(2)+y^(2))and(x-y+lamda)^(2)=4,lamdagt0, then lamda i...

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  13. Which of the following sets are empty sets ? (i) {x:x^(2)=2 and x is...

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  14. State which of the following sets are finite and which infinite : (i...

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  15. In each of the following cases, state whether A = B or A ne B. (i) A...

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  16. When two ratios are equal, then the four quantities compositing them a...

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  17. When two ratios are equal, then the four quantities compositing them a...

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  18. When two ratios are equal, then the four quantities compositing them a...

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  19. Least integral value of x satisfying the inequation (x^(2)+1)lt(x+2)^(...

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  20. The polynomials P(x)=kx^(3)+3x^2-3and Q(x)=2x^(3)-5x+k, when divided b...

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