2022 JSCE Mathematics Objective Past Questions Paper 1

Convert 83.00756 to 5 significant figures

Find the square root of 196.

What is the place value of the digit 2 in the number 428.531?

Evaluate \( \scriptsize \sqrt{2 \frac{1}{4} } \)

Express 168,000 correct to the nearest ten thousand

Find the H.C.F of 15 and 27

If 25% of a number is 540, find the number

Calculate 111_two – 101_two

Find one-third of the sum of 9 and 12

Round off 0.00237 to 2 significant figures

Evaluate \( \scriptsize 2\frac{1}{6} \: + \: 1\frac{1}{3} \: -\: \normalsize \frac{1}{2} \)

At what speed in km/h does a cyclist travel if he covers a distance of 15 km in 1½ hours?

Express \( \frac{3}{5}\) as a decimal.

Express 0.0007936 in standard form.

What is the highest common factor of 24, 28 and 44?

What number does the Roman numeral MCMLXXIX represent?

Simplify \( \scriptsize 28 \: \div \: 11 \frac{2}{3} \)

Find the L.C.M of 24, 36, and 72

Subtract 11111_two from 111011_two

Find the simple interest on ₦30,000 for 2 years at 2% per annum.

Express 9 in binary numbers.

An estimated length of a twine is given as 4.8 cm when corrected to 2 significant figures. Find the least possible length of the twine.

If the area of a triangle of base 12 cm is 30 cm², find the height of the triangle.

A man spent \( \frac{2}{3}\) of his salary on his family and \( \frac{1}{4}\) on himself. If he saved the rest of his money, what fraction did he save?

Find the value of x in the figure below

Estimate the number of square rug of size 17 cm by 17 cm that is needed for a square room of size 4.2 m.

Find the value of y in the figure below

Find the size of the unknown angle in the figure below

Find the value of x in the diagram below, correct to one decimal place

Find the area of a triangle whose base is 10 cm and height 3 cm.

A car travelling at 60 km/hr completes a distance in \(\frac{3}{2} \) hours. How long will it take to complete the same distance if the speed is decreased to 30 km/hr?

Calculate the volume of a cuboid 7 cm long, 5 cm hide and 3 cm high.

Calculate the area of the parallelogram below.

Calculate the perimeter of a rectangle with length 8 cm and breadth 4 cm.

A machine produces 800 pins in 4 days. How many pins will it produce in 12 days?

Calculate the perimeter of the shape below.

Find the value of y  in the figure below, correct to one decimal place.

Find the compass bearing for 099º.

Find the value of x in the figure below.

In a population of 1,500 students that was wrongly recorded as 900, find the percentage error.

If the area of a semi-circle is 308 cm², calculate its radius

(Use π = \( \frac{22}{7}\))

If the angle 90º is bisected, it will result to angle

What is the diameter of a circle with circumference 264 cm?

The sum of the interior angles of a heptagon is

The area scale factor of two similar shapes is 25:64. Find their linear scale factor.

Calculate the volume of a cylinder 12 cm high and base radius \( \frac{7}{2} \scriptsize \: cm \)

(Use π = \( \frac{22}{7} \) )

What is the size of the angle marked x in the diagram below.

Find the value of x in the figure below.

The linear scale factor of two shapes is 2:5. If the area of the smaller shape is 120 cm², what is the area of the bigger shape?

Calculate the length of the hypotenuse of the triangle below, correct to one decimal place.

From the top of a mast 60 m high, the angle of depression of a man is 66º. Find the distance of the man from the foot of the mast to the nearest metre.

Two similar cylindrical cans have heights 2 m and 3 m respectively. If the smaller one holds 800 g of sugar, how many kilograms of sugar will the bigger one hold?

Which of the points P, Q, R, S and T in the figure below is on a bearing 135º from O?

The linear scale factor of two similar shapes is \( \frac{4}{5} \), if the volume of the bigger shape is 500 cm³, determine the volume of the smaller shape.

Calculate the area of the trapezium below.

If the bearing of A from B is 053º, the bearing of B from A is _____

Calculate the area of a triangle with base 14 cm and length 6 cm long.

Find the volume of a cone with base radius 7 cm and vertical height 6 cm.

Use π = \( \frac{22}{7} \)

The angles of a pentagon are xº, 2xº, 3xº, 2xº and 4xº. Find the value of xº.

A man finds the angle of elevation of the top of a tree 14 m high to be 30°. Calculate the distance of the man from the foot of the tree to the nearest metre.