Direction : What should come in place of the question (?) in the following question.

35% of 430 + ? % of 360 = 276.5

What is the value of x and y in these equations 7x-2y=8 and 3x+4y=18.

Direction : Given here is a multiple bar diagram of the scores of four players in two innings. Study the diagram and answer the questions.

The average score in second innings contributed by the four players is:

Study the following pie-diagrams carefully and answer the question given below it.
PERCENTAGE COMPOSITION OF HUMAN BODY 

what will be the quantity of water in the body of a person weighing 50 kg?

If a sailer sails 12 km distance within 5 hours against the flow of a river. If he sails 22 km distance in same time along the flow of the river. Then velocity of the river is _______

A sample of 50 litres of glycerine is found to be adulterated to the extent of 20 % . How much pure glycerine should be added to it so as to bring down the percentage of impurity to 5 %? 

Kirti invested a sum of money at a certain rate of simple interest per annum for 3 years in "Bachat scheme". Had she invested the same sum in "Shiksha scheme" for 3 years which has a 2% higher simple interest rate per annum, the investment would have fetched ₹540 more. How much did Kirti invest?

The point Q(a, b ) is first reflected in y-axis to Q1 and Q1 is reflected in x-axis to (-5,3 ). The co-ordinates of point Q are