Question
The digits of a two-digit number βNβ are reversed to
form a new number βMβ. If M < N and N β M = 45, then which of the following maybe βNβ?Solution
ATQ; Let the original number = N = β10a + bβ So, the new number = M = β10b + aβ ATQ; N = M + 45 So, 10a + b = 10b β a + 45 Or, 9a β 9b = 45 Or, a β b = 5 So, possible pairs of βaβ and βbβ = (9, 4), (8, 3), (7, 2), (6, 1) So, possible values of βNβ = 94, 83, 72, 61 Alternate Solution From option βaβ: N = 49 So, M = 94 Since, M > N {not possible} N = 61 So, M = 16 Also, N β M = 61 β 16 = 45
As per this article, which one of the following is the prime reason to save the ecological diversity of Western Ghats?
(A) It is important to sav...
Statement : The Government will pay heed to the recommendation given by MadhavGadgil headed Western Ghats Ecology Expert Panel regarding the conservat...
What does the survey argue against?
I. Sudden stall of the stock prices
II. Setting of targets which are very difficult to achieve
...Which of the following is most similar in meaning to the word 'chronic' as used in the passage?Β
He also stressed that the ongoing visit (A)/by the Pakistan Prime Minister to Moscow (B)/will in no way affect ties between India and Russia (C).
Why was it not possible for them to withdraw money from the bank?
What international factors point to a positive projection of India's GDP growth acceleration?
Choose the word which is most nearly the same in meaning to the word βprerogativeβ as used in the passage .
What stops the desert floras performing their duty well?
According to the passage, which word is the meaning of Precision?
