Exams

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

Capable of being imagined or grasped mentally

In the following question, a sentence has been given in Active/Passive voice. Out of the four alternatives suggested, select the one 

Karnataka grows coffee

For what value of k, the expression x6– 18x3 + k will be a perfect square?

A can do a work in 21 days and B in 42 days. If they work on it together for 7 days, then what fraction of work is left?

The average age of a class of 39 students is 15 years. If the age of the teacher is included, then the average increases by 3 months. Find the age of the teacher.

A and B together do a job in 6.75 days and A could do the job in 9 days if he worked alone. How many days would B take to do the job if he worked alone?

3/5 of my current age is the same as 5/6 of that of one of my cousin. My age ten ago will be his age four years hence. My current age is ___ years.

HCF and LCM of two numbers are 11 and 825 respectively. If one number is 275 find the other number.