Pi Prodigies - Round 5

A line which cuts a pair of parallel lines is called

• tangent

• chord

• transversal

• intersector

An angle whose value is ____, is called complete angle.

• 180°

• 240°

• 360°

• none of the above

When is the National Mathematics Day Celebrated?

• March 14

• March 23

• November 22

• December 22

The areas of two similar triangles are 81 sq. cm and 49 sq. cm. Find the ratio of their corresponding heights.

• 7:9

• 6:5

• 81:49

• 9:7

Consider ΔABD such that angle ADB = 20° and C is a point on BD such that AB=AC and CD=CA. Then the measure of angle ABC is

• 30°

• 40°

• 45°

• 60°

4950/6 + 112 x 1.75 = ? x 2

• 510.5

• none of the above

• 505.2

• 515.5

If the length and breadth of a rectangle are increased by a% and b% respectively, then the area will be increased by

• [a-b+(ab/100)]%

• [a+b+(2ab/100)]%

• [a+b+(ab/100)]%

• [a-b+(2ab/100)]%

A, B and C can complete a piece of work in 24, 6 and 12 days respectively. Working together, they will complete the work in

• 7/24 days

• 7 days

• 24 days

• 24/7 days

A shopkeeper purchases 15 mangoes for Rs. 10 and sells them at 10 mangoes for Rs. 15. Thus, he earns a profit of

• 125%

• 80%

• 50%

• 75%

One year ago, a man was 8 times as old as his son. Now his age is equal to the square of his son's age. Their present ages are

• 7 years, 49 years

• 5 years , 25 years

• 1 year, 50 years

• 6 years, 49 years