Exams

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

If the electronic configuration of elements A and B are 1S2, 2S2 2P6, 3S1 and 1S2, 2S2 2P6, 3S2 3P4 respectively, then the formula of the compound formed by the combination of these elements will be:

4 years ago, the ratio of Vikah's to Rahul's age was 3:5. After 6 years, this ratio would become 4:5. Find present age of Rahul.

What product is formed when electricity is passed through an aqueous solution of sodium chloride?

In a certain code language, 'x' represents '+', '÷' represents 'x', '-' represents '÷' and '+' represents '-'. Find out the answer to the following question.

20 ÷ 12 - 30 + 10 x 10 = ?

Which of the following is a land locked country?

Simple interest on a certain sum of money for 3 years at 5% per annum is Rs. 5250. What will be the compound interest on that sum at the same rate for the same period?

If the frequency of a sound wave of given velocity is increased , how will it affect its wavelength?