BPSC PRELIMS MATHS QUIZ-2

What is the number that is 20% more than 80?

Six bells start ringing at once, then at intervals of $2,4,6,8,10,12$ seconds. How many times will they ring together in 30 minutes?

A can do a piece of work in 4 days and B can do it in 6 days. If both of them work together then in how many days will it take to complete the work? ,

A merchant sold a pen at a loss of 20%. If he had sold it for Rs.12 more, he would have made a profit of 10%. What is the cost price (Rs) of that pen?

The ratio of the ages of Deepika and her mother is $3: 11$. After 3 years the ratio of their ages becomes $1: 3$. How old is Deepika?