How many integers are there between 92 and 102 ?
A) 16
B) 13
C) 28
D) 18
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How many protons, electrons and neutrons are there in the following nuclei?
i. \(_8^{17}O\) Atomic number, Z = 8, Mass number, A = 17 Number of protons = Number of electrons = Z = 8 Number of neutrons (N) = A – Z = 17 – 8...
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How many s – block and p block elements are there in the third period of the periodic table ?
Correct option is D) 2, 6
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Find the common difference of an A.P if \( t_{18}-t_{14}=3 L \). If \( 3+k, 18-k, 5 k+1 \) are in A.P, then find \( k \). If \( p \) and \( q \) are positive integers, then we write \( p=a^{2} b^{3} \) and \( q=a^{3} b \) if \( a \), \( b \) are numbers, then verify that L.C.M of \( (p, q) \times \) H.C.F of \( (p, q)=p q \).
t18=t1+17×d t14=t1 +13×d solving the two equtaions, t18-t14= 4d subtisting 4d=32 = d=8
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Find the sum of all integers between 84 and 719 which are exactly divisible by 3
The sequence is 87, 90 ... 717 a = 87, an = 717, d = 3 an = a + (n - 1)d 717 = 87 + 3n - 3 633 = 3n n = 211 S211 =...
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Number of odd integers between 1000 and 8000 which have none of their digits repeated, is : (A) 1014 (B) 810 (C) 690 (D) 1736
There are two restrictions operating this question. 1. For a number to be odd, the unit digit should be either 1,3,5,7 or 9. 2. Thousand can not be filled with 8 or...
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No. of integers lie between 4^2 and 5^2
Correct option is (A) 8 \(\because\) No. of integers between \(n^2\;\&\;(n+1)^2\) is 2n. \(\therefore\) No. of integers lie between \(4^2\) and \(5^2\) is \(2\times4=8.\)
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How many integers are in between the squares of 25, 26 …………………..?
Correct option is A) 50
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How many integers are in between the squares of 25, 26 …………………..?
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How many cube numbers are there between 1 to 100 ?
Correct option is (C) 3 8, 27 & 64 are perfect cube numbers between 1 to 100. \(\therefore\) There is total 3 cube numbers between 1 to 100.
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How many integers are there between 9^2 and 10^2 ?
Correct option is D) 18
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