Answer: Option 4
Any four digit number in which first two digits are equal and last two digits are also equal will be in the form 11 × (11a + b) i.e. it will be the multiple of 11 like 1122, 3366, 2244, . . . . Now, let the required number be aabb. Since aabb is a perfect square, the only pair of a and b that satisfy the above mentioned condition is a = 7 and b = 4 Hence, 7744 is a perfect square
Answer: Option 3 Average $$ = \frac{{11 + 22 + 33 + 44 + 55 + 66 + 77 + 88 + 99}}{9}$$ $$ = \frac{{\left( {11 + 99} \right) + \left(...
1 Answers 2 viewsAnswer: Option 3 As A and T should occupy the first and last position, the first and last position can be filled in only one following way. A _ _ _...
1 Answers 1 viewsAnswer: Option 1 The last of the four letter words should be a consonant. Therefore, there are 21 options. The first three letters can be either consonants or vowels. So, each...
1 Answers 1 viewsAnswer: Option 1 The reservation of jobs in the private sector too would surely increase opportunities for weaker sections to improve their economic plight. Thus, argument I is strong enough....
1 Answers 1 viewsAnswer: Option 3 These numbers are 11, 13, 31, 17, 71, 37, 73, 79, 97.
1 Answers 1 viewsAnswer: Option 4 When two two digit numbers are added and the resultant value is a three digit number. It means there must be a carry over (i.e. The sum...
1 Answers 1 viewsAnswer: Option 4 Let the ten's digit be x and the unit's digit be y Then, number = 10x + y New number : $$\eqalign{ & = 10 \times 2x + \frac{y}{2} \cr & =...
1 Answers 1 viewsAnswer: Option 1 Clearly, health of the citizens is an issue of major concern for the Government. So, a product like drugs, must be first studied and tested in the...
1 Answers 1 viewsAnswer: Option 3 Clearly, a person committing a heinous crime like murder or rape should be so punished as to set an example for others not to attempt such acts...
1 Answers 1 viewsAnswer: Option 2 The parents' protest against high fees being charged by the institutions led the government to interfere and fix the fees at a more affordable level.
1 Answers 2 views