The LCM of two coprime numbers is 1,302. If one of the numbers is 42, what is the other number? in detail
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A sample contains two isotopes -one stale and the other unstable. Number of stable nuclei is equal to `N_(s)` and number of unstable nuclei is equal t
Correct Answer - `N_(s)//N_(u)=1//3`
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Six cards are drawn one by one from a set of unlimited number of cards, each card is marked with numbers `-1, `0` or `1`. Number of different ways in
Correct Answer - C `(c )` Hence the sum of the numbers on six cards vanishes. Case I : If selected `3` cards each of number `-1` or `1` i.e. Number...
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Number of six-digit numbers such that any digit that appears in the number appears at least twice, where the digits of each number are from the set `{
Correct Answer - C `(c )` Case I : All six digits alike i.e. `111111`, `222222`……..etc. `=5` ways Case II : `2` alike `+2` other alike. Select any three in `"^(5)C_(3)`...
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Find the LCM and HCF of the following polynomials `36(x +2)^(2) (x-1)^(3) (x +3)^(5), 45 (x +2)^(5) (x -1)^(2) (x +3)^(5) and 63 (x -1)^(5) (x +2)^(5)
Correct Answer - HCF `= 9 (x +2)^(2) (x -1)^(2) (x +3)^(4)` LCM `= 1260 (x +2)^(5) (x -1)^(5) (x + 3)^(5)`
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The LCM of the polynomials `(x^(2) + x - 2) (x^(2) + x -a) and (x^(2) + x -b) (x^(2) + 5x + a) " is " (x -1) (x +2) (x +3)`, then find the values of a
Correct Answer - `a =6,b =2`
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मान लीजिए कि Nमें एक द्विआधारी संक्रिया *,a*b =a तथा b का LCM द्वारा परिभाषित है। निम्नलिखित ज्ञात कीजिए: (i) 5*7, 20 *16 (ii) क्या संक्रिया *क्रमविन
Correct Answer - (i) `5**7 = 35, 20** 16 = 80` (ii)हां (iii)हां (iv)1 (v) 1
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Between which two whole numbers on the number line are the given numbers lie? Which of these whole numbers is nearer the number? (a) 0.8 (b) 5.1 (c) 2
Correct Answer - (a) 0 और 1;1 `" "` (b) 5 और 6;5 (c ) 2 और 3;3 `" "` (d) 6 और 7;6 (e) 9.0 स्वयं 9 पूर्ण संख्या...
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Using prime factorisation, find the HCF and LCM of : , (i) 36, 84 (ii) 23,31 (iii) 96,404 (iv) 144,198 (v) 396, 1080 (vi) 1152, 1664 In each case, ver
Correct Answer - (i) HCF= 12, LCM= 252, (ii) HCF= 1, LCM= 713 (iii) HCF = 4, LCM= 9696, (iv) HCF = 18, LCM= 1548 (v) HCF= 36, LCM= 11880,...
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Using prime factorisation, find the HCF and LCM of : , (i) 8,9,25 (ii) 12,15,21 (iii) 17 ,23,29 (iv) 24,36,40 (v) 30,72,432 (vi) 21,28,36,45
Correct Answer - (i) HCF=36, LCM=- 11880 , (ii) HCF= 18, LCM=1548 (iii) HCF= 1, LCM= 11339 (iv) HCF = 4, LCM= 360 (v) HCF= 6, LCM= 2160 (vi) HCF=...
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If 45 is subtracted from twice the greater of two numbers, it results in the other number. If 21 is subtracted from twice the smaller number, it resul
Correct Answer - 37,29
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