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
Select the figure from among the given options that can replace the question mark (?) in the following series.
Select the figure from among the given options that can replace the question mark (?) in the following series.
Select the figure from among the given options that can replace the question mark in the given series.
Each of the following questions consists of two sets of figures. Figures A, B, C and D constitute the Problem Set while figures (1), (2), (3) and (4) c...
Select the figure which will come next in the following figure series.
Select the figure from the options that can replace the question mark (?) in the following series.
Select the figure from among the given options that can replace the question mark (?) in the following series.
Find the question markΒ ?Β figure from answer figure.
Select the figure that will come next in the following figure series.
2 + 5 = 36
7 + 6 = 98
6 + 4 = 62
4 + 9 = ?
