LFA JSS 3 PRE MOCK 2

Express 0.03076 to three significant figures.

• 0.0308

• 0.031

• 0.0307

• 0.308

Solve the equation 4/x=8.

• ½

• 4

• ⅕

• 2

Find the product of the L.C.M of 8 and 12 and the H.C.F of 3 and 9.

• 27

• 48

• 72

• 216

Expand (n + 5) (n - 4).

• n² + 4n + 5n - 20

• n² - 9n + 20

• n² - n - 20

• n² + n - 20

Convert 1010₂ to base 10.

• 11

• 12

• 10

• 13

Simplify 20a⁸ ÷ 5a⁵

• 20a⁸

• 4a⁵

• 4a³

• 100a¹⁰

Find the HCF of 9x² and 27xy²

• 9x

• 9xy

• 9x²

• 27x²y²

Simplify (12 X 10⁸) ÷ (4 X 10⁵) and leave your answer in ordinary form.

• 2000

• 300

• 3000

• 200

Solve the equation: 2x+5=x+8.

• 16

• 4

• 3

• 2

Solve the equation ½ - 6/x=2.

• -4

• 3

• -3

• 2