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Let the ten’s digit be x. Then, unit digit = 7- x . No.= 10x + (7-x ) = 9x + 7 No. obtained by reversing the digits = 10(7- x ) + x = 70-9x (9x + 7) - 9 = 70- 9x , or, 9x + 9x = 70 - 7 + 9, or, 18x = 72 or x = 4, so ten’s digit = 4 and unit digit = 3 Hence, the required number = 43.
Select the option that represents the letters which, when sequentially placed from left to right in the blanks below, will complete the letter series.
A number has been denoted to each of the given letters. Select the option from the following four possible arrangements of these numbers that forms a me...
Three friends, A, B and C work in an office, in the IT, HR and Banking departments. A works in the banking department and works 8 hours a day, but, the ...
Find which figure is to be removed so that all, starting from I, fit into a pattern.
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
Three of the following four are alike in a certain way and so form a group.
Which one does not belong to that group?
What should come in place of '?' in the given series?
24 103 498 2473 12348 ?
What will come in the place of the question mark (?) in the following equation, if '+' and '–' are interchanged and '×' and '÷' are interchanged?
Select the correct combination of mathematical signs to replace * signs and to balance the given equation:
72 * 144 * 72 * 6 * 40 * 110
Select the number from among the given options that can replace the question mark (?) in the following series.
99, 123, 150, 180, 213, ?
