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In any month, Harish deposits m% and withdraw n% of the closing balance of the previous month. If his balance at the end of March (after the withdrawal) is the same as his balance at the beginning of January (before the deposit), which of the following is true?
(a) \(\frac {n}{2} < m < n\)
(b) m = n
(c) m > n
(d) \(m < \frac {n}{2}\)
Updated Wed, 04 Sep 2019 04:31 pm


The number of molecules in 100mL of 0.02 N\(N_2\) S\(O_4\) is.
(i) \(6.02 \times 10^{22}\)
(ii) \(6.02 \times 10^{21}\)
(iii) \(6.02 \times 10^{20}\)
(iv) \(6.02 \times 10^{18}\)
Updated Wed, 04 Sep 2019 09:30 am