Exams

Present age of R and S are in the ratio of 3 : 2 respectively. If the present age of H is 117 years and R’s present age is 4/13 of H’s present age, then after how many years the ages of R and S would be in the ratio of 15 : 11?

The product of two numbers is 20. One of them is 1.25. What is the other number?

Which planet is the nearest in size to Earth?

Mechanical energy is equal to

The pie chart shows the contribution of all the sectors towards the GDP of the economy of a certain country. Study the diagram and answer the following questions.

The measure of the central angle of the sector representing D is ________ degrees.

19 x 23 = 437. Then 190 x 0.023 = ?

The expenses of a person increase by Rs. 50000 for every month in February and March. If his expenses in January was Rs. 50000, calculate his average expenditure (in Rs.) from January to March.

Bacteria, blue-green algae or cyanobacteria and mycoplasma are examples of organisms of which kingdom?