log27 /log 12 = a then log 16 /log 6 = ?

65^2=?

124362769 divisble by 17?

The sum of two times one natural number and three times another natural number is less than 24. If the first natural number is less than or equal to eight, the highest value of the second natural number is:

John is 7 times as old as his son. 10 years hence he will be 3 times as old as his son. What are their present ages (in years)?

Mr Sumit, Mr Punit and Mr Sanjay are partners in a business. Mr Sumit started the business with Rs 40,000. After 3 months, Mr Sanjay and Punit joined him with Rs 60,000 each. If the total profits at the end of the year amount to Rs 31,200, what would be Sanjay share in it?

On giving a reduction of 20% on clothes, a clothmerchant’s sale increased by 30% to become Rs 26,000 in the month of June 2010. What was the previous sale?

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In a two-digit number, if it is known that its ten's digit exceeds its unit's digit by 2 and that the product of the given number and the sum of its digits is equal to 252 then the number is:

What is the sum of two consecutive odd numbers, the difference of whose squares is 48?

How many numbers from 1 - 100, which have the letter 'A' in their spellings?