Simple Equations Test

Result

Simple Equations Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

One of the two supplementary angles is 35°. Find out the other angle.

A
95°

B
105°

C
135°

D
145°

Solution

Sum of two supplementary angles = 180°

Missing angle = 180° - 35°
= 145°
Question 2
1 / -0

A's age is half the age of his brother. 5 years from now, the difference between the ages of the two brothers will be only 3 years. Find the current age of A's brother.

A
5

B
6

C
7

D
None of the above

Solution

Let the age of A be x years.
So, present age of A's brother = 2x years

Age of A after 5 years = (x + 5) years
Age of A's brother after 5 years = (2x + 5) years

As per question statement:

(2x + 5) - (x + 5) = 3
⇒ x = 3

So, the present age of A's brother = 2x = 2 × 3 = 6 years.
Question 3
1 / -0

Represent the following scenario in a mathematical equation:

There are two types of chocolates: Big and Small. The length of one big chocolate is 5 cm more than the combined length of 5 small chocolates. If the length of one big chocolate is 0.30 m, then form an equation to determine the length of a small chocolate.

A
5 = 5x + 30

B
30 = 5x + 5

C
5 = 30x + 5

D
None of the above

Solution

Length of one big chocolate = 0.3 m = 30 cm
Let the length of one small chocolate be x cm.

So, according to the question:
30 = 5x + 5