MATHS QUIZ COMPETITION 2023

The nth term of a sequence is Tn = 5 + (n - 1)2. Evaluate T4 - T6.

• 30

• 16

• -16

• -30

The mean age of five children is 8years 4 months. When Amina joins the children, their mean age becomes 8years 5months.

• 8years 6months

• 8years 7months

• 8years 8months

• 8years 9months

• 8years 10 years

A student got 78 marks out of possible 120. Express the student's mark as a percentage.

• 58%

• 65%

• 68%

• 72%

• 78%

If E ={1,2,3,………15,16}, T = {1,3,6,10,15} and S = {1,4,9,16} then (T S)' =

• {1,3,4,6,9,10,15,16}

• {2,3,4……..,15,16}

• {2,5,7,8,11,12,13,14}

• {3,4,6,9,10,15,16}

• {3,6,10,15}

x varies directly with y and y varies inversely as the square of z. which of the following is the relation between x and z?

• x ∝ z

• x ∝ z²

Find the missing number in the addition of the following numbers, in base seven

• 3453

• 5556

• 6016

• 1345

A piece of cloth was measured as 6.10m. If the actual length of the cloth is 6.35m, find the percentage error, correct to 2 decimal places.

• 3.05%

• 3.94%

• 15.00%

• 25.00%

Four oranges sell for ₦x and three mangoes sell for ₦y. Olu bought 24 oranges and 12 mangoes. How much did he pay in terms of x and y?

• ₦(6x + 4y)

• ₦(4x + 6y)

• ₦(24x + 12y)

• ₦(12x + 24y)

• x + y

• xy

Solve the inequality: 3(x + 1) ≤ 5(x + 2) + 15

• x ≥ - 1

• x ≤ - 14

• x ≤ - 11

• x ≥ -11