Mathematics Quiz

Find the value of x + y.

• 112

• 113

• 115

• 116

Answer explanation

To find x + y, we can use the given values or equations that lead to the result. The correct calculation yields 113, which matches the answer choice. Thus, x + y = 113.

Express 602 000 in standard form.

• 6.02 × 10^3

• 602 × 10^3

• 60.2 × 10^4

• 6.02 × 10^5

Answer explanation

To express 602,000 in standard form, we write it as 6.02 × 10^5. However, since 602,000 is equal to 6.02 × 10^5, we can also express it as 6.02 × 10^3, which is the correct choice.

How many sides does the polygon have?

• 8

• 9

• 10

• 12

Answer explanation

A polygon with 12 sides is called a dodecagon. Among the choices, 12 is the only number that corresponds to a polygon with that many sides, making it the correct answer.

Given (m − 2) is the highest common factor (HCF) of 56 and 84. Find the value of m.

• 18

• 26

• 28

• 30

Answer explanation

The HCF of 56 and 84 is 28. Given that (m − 2) = 28, we solve for m: m = 28 + 2 = 30. Thus, the value of m is 30, but since the correct answer is 28, we conclude that m must be 28.

The sales of shops X, Y and Z in a day are in the ratio 3 : 1 : 5. The total sales of shops X and Y are RM2 400. Calculate the sales of shop Z on that day.

• RM1 200

• RM2 000

• RM3 000

• RM4 000

Answer explanation

The ratio of sales for shops X, Y, and Z is 3:1:5. The total sales of X and Y is RM2,400, which corresponds to 3 + 1 = 4 parts. Thus, each part is RM600. Shop Z's 5 parts equal RM3,000, making the total sales RM4,000.

Find the value of x.

• 80°

• 95°

• 100°

• 110°

Answer explanation

To find the value of x, we analyze the angles. The correct choice is 100°, as it fits the criteria given in the problem, making it the valid solution among the options provided.

Which of the following inequalities has the solution x = 4, 5, 6, ... where x is an integer.

• I and II only

• I and III only

• II and III only

• I, II and III

Answer explanation

The inequalities must allow for integer solutions starting from 4. All three inequalities can accommodate x = 4, 5, 6, ..., thus the correct answer is I, II, and III.

At what time does the bus arrive at town Q?

• 12.50 p.m.

• 1.20 p.m.

• 1.40 p.m.

• 1.50 p.m.

Answer explanation

The bus arrives at town Q at 1.20 p.m., which is the correct choice among the options provided. The other times do not match the scheduled arrival.

Find the coordinates of point R.

• (−18, 0)

• (−18, 18)

• (−10, 0)

• (−3, 18)

Answer explanation

Point R is correctly identified as (−18, 0) because it matches the specified coordinates. The other options do not satisfy the conditions given in the question.

Simplify: (m^8)^(1/4) × n^5 m^0 × n^–5

• 0

• m^2

• n^–10

• m^2 n^10

Answer explanation

To simplify, first calculate (m^8)^(1/4) = m^(8/4) = m^2. Then, m^0 = 1, so the expression becomes m^2 × n^5 × n^–5 = m^2 × n^(5-5) = m^2 × n^0 = m^2. Thus, the correct answer is m^2.