Math Reinforcement

If 2x+5=13, what will be the value of x?

• 4

• 8

• 6

• 2

15% of 20 =

• 3

• 30

• 300

• 0.3

LCM of 3 and 9?

• 27

• 36

• 18

• 9

HCF of 16 and 12?

• 4

• 6

• 8

• 3

What will be the missing angle?

• 118 degrees

• 28 degrees

• 30 degrees

• 90 degrees

Perimeter of a square is 24cm. What will be its Area?

• 63 cm²

• 36 cm²

• 6 cm²

• 18 cm²

If the side length of a cube is 4 ft, what will be its volume?

• 16 ft³

• 64 ft³

• 12 ft³

• 32 ft³

Sana buys 3 balloons for 20 Rs each and 5 sweets for 100 Rs. How much does she spend in total?

• 660 Rs

• 500 Rs

• 160 Rs

• 100 Rs

For the equation 5a - 2=18, the value of a will be:

• 2

• 4

• 6

• 20

0.35 ÷ 0.7 =

• 5

• 0.5

• 0.05

• 5.0