Mathematics Challenge

BD = 7 , DC = 28 Find AD

• 5(7^(1/2))

• 21

• 35^(1/2)

• 14

Answer explanation

Triangle ABD is similar to triangle ADC

Simplify: 3(4 + 2) - 5

• 15

• 13

• 20

• 10

Find the perimeter of a rectangle with length 10 cm and width 5 cm.

• 25 cm

• 15 cm

• 30 cm

• 40 cm

If a car travels at a speed of 60 km/h, how far will it travel in 3 hours?

• 120 km

• 90 km

• 180 km

• 200 km

What is the value of 2/3 + 1/4?

• 1/2

• 5/6

• 3/7

• 11/12

Solve for x: 2x + 5 = 17

• x = 6

• x = 15

• x = 10

• x = 8

Calculate the area of a triangle with base 6 cm and height 4 cm.

• 24 square cm

• 10 square cm

• 12 square cm

• 8 square cm

If a box contains 24 chocolates and 6 are taken out, how many chocolates are left?

• 25

• 18

• 22

• 20

What is the next number in the sequence: 2, 5, 8, 11, ...?

• 20

• 12

• 14

• 17

If a book costs $15 and is on sale for 20% off, what is the sale price?

• $16

• $14

• $12

• $10