Grade-10 Math Competition

Find the missing number, if same rule is followed in all the three figures.

• 493

• 611

• 513

• 411

Tags

CCSS.5.NBT.B.7

• 2187

• 6561

• 81

• 729

Tags

CCSS.6.EE.A.2C

Divya used four similar rectangular carpets and a square carpet for the flooring in her study room as shown in the figure (not drawn to scale). If it costs her ₹ 7 per square metre for the rectangular carpets and ₹ 12 per square metre for the square carpet, then how much did she pay in all?

• ₹ 540

• ₹ 596

• ₹ 638

• ₹ 692

Find the missing number, if same rule is followed row-wise or column-wise.

• 40

• 30

• 25

• 35

Tags

CCSS.HSN.VM.C.8

There is a certain relationship between the pair of numbers on either side of ::. Identify the relationship of the given pair and find the missing number.

5 : 126 :: 7 : ?

• 254

• 257

• 128

• 344

Tags

CCSS.6.RP.A.3B

A rectangular block of 9 cm × 15 cm × 21 cm is cut into an exact number of equal cubes. What is the least possible number of cubes that can be cut out?

• 45

• 105

• 90

• None of these

• 235°

• 175°

• 165°

• 245°

Tags

CCSS.8.G.A.5

A pendulum swings through an angle of 45° and describes an arc 8.8 cm in length. What is the length of the pendulum?

• 8.8 cm

• 11.2 cm

• 5.6 cm

• 17.6 cm

Tags

CCSS.HSG.C.B.5

What least number must be subtracted from 1368 to make it a perfect cube number?

• 37

• 9

• 23

• None of these

Tags

CCSS.8.EE.A.2

• 20 m, 8 m

• 6 m, 17 m

• 19 m, 7 m

• 7 m, 19 m