Rithvik's Blog 11+

A bag contains 4 red marbles, 6 blue marbles and some green marbles. A marble is picked at random. The probability that it is blue is 1/3. How many green marbles are in the bag?

Two buses leave the bus station at 9:00 am. The red bus leaves every 12 minutes and the blue bus leaves every 18 minutes. When is the next time both buses leave the station together?

A rectangle measures 10 cm by 8 cm. A square with sides of 3 cm is cut out of one corner. What is the perimeter of the shape that is left?

A train leaves Birmingham at 10:48 and arrives in London at 13:15. How long does the journey take?

The mean of five numbers is 12. When a sixth number is added, the mean of all six numbers becomes 13. What is the sixth number?

In a triangle, angle A is twice the size of angle B. Angle C is 20° bigger than angle B. What is the size of the largest angle?

A jacket costs £80. The shop increases the price by 25%. Later, in a sale, the new price is reduced by 20%. How much does the jacket cost in the sale?