Given are there numbers. If the second and the third numbers respectively are `20%` and `50%` more than the third number, then what percentage is the first of second ?
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In DNA percentage of thymine is 20, then what is the percentage of guanine ?
Correct Answer - C Total DNA [100] =A +T +C +G A= 20% (given) A= T (base pairing rule) 100 =20 +20 +C +G C+G =100 -40 =60 C = G=...
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Two finite sets have m and `n ( m gt n)` elements .The number of subes of the first set is 112 more than that of the second set. The value of mn is
Correct Answer - B According to the question `2^m-2^m= 112 ` `rArr 2^n (2^(m-n)-1)= 2^4 xx 7` Comparing exponets on both sides ,we get `2^n-2^4 and 2^(m-n)-1= 7 ` Now ,`2^n=...
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There is certain number of rows of chairs in a room .The number of chairs in each row is thrice the total number of rows. Find the number of charis in
Correct Answer - 81,27
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In an examination, Salim secured `52%` marks and got 114 marks more than the pass marks and A zam secured `39%` marks and got 36 marks more than the p
Correct Answer - `198,33%`
2 Answers 3 views
In an election there were only two contestants. The democrats secured 35% valid votes more than the republicans if 6% of votes were invalid then what
Correct Answer - `54`
2 Answers 1 views
Three numbers form a GP. If the third term is decreased by 128 then, the three numbers, thus obtained, will form an AP. If the second term of this AP
Correct Answer - `(8)/(9), (104)/(9) and (1352)/(9)`
2 Answers 1 views
Suggest a universal set for the set given below. A = {Even numbers less than 100} B={Odd natural numbers less than 100 in natural numbers }
Correct Answer - `mu = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12---------, 99}`
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10. Lymph differs from blood in possessing (1) More proteins and less waste products (2) Less proteins and more waste products (3) More proteins and more waste products (4) Less proteins and less waste products
(2) Less proteins and more waste products
2 Answers 1 views
A die is thrown once. Find the probability of getting (i) an even number (ii) a number less than 5 (iii) a number greater than 2 (iv) a number between
Correct Answer - `(i) 1/2 (ii) 2/3 (iii) 2/3 (iv) 1/3 (v) 5/6 (vi) 1/6`
2 Answers 1 views
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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