The least number, which must be added to 6709 to make it exactly divisible by 9, is 

In a two digit number if it is known that its unit digit exceeds its tens digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is 

0.1 and   $${5\over 8}$$ of a bamboo are in mud and water respectively and the rest of length 2.75 m is above water. What is the length of the bamboo? 

4⁶¹ + 4⁶² + 4⁶³ + 4⁶⁴ is divisible by: 

Find the no. of prime factors in the product of 25¹² × 10⁷ x 14⁷ ? 

The value of $${3.157×4126×3.198\over63.972×2835.121}$$ is closest to : 

380 mangoes are distributed among some boys and girls who are 85 in numbers. Each boys gets four mangoes and each girls gets five. The number of boys is : 

The least number that must be added to 8961 to make it exactly divisible by 84 is