## The algebraic expression of the word expressing “subtract eight times of the number is from ten times of the number c is:

A. 2bc

B. 8b – 10c

C. 8c – 10b

D. 10c -8b

### Answer

Correct Answer:** D. 10c -8b**

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# Category: Algebra MCQs

## The algebraic expression of the word expressing “subtract eight times of the number is from ten times of the number c is:

### Answer

## At present, the age of Ali is 10 years, what will be his age after 12 years?

### Answer

## If Amna is x years old then 5 times Amna’s age three years ago is:

### Answer

## 8 machines can do a piece of work in 10 days. How long will it take 16 machines to do the work?

### Answer

## A rectangular room is 6m long, 5m wide and 4m high. What is the total volume of the room in cubic meters?

### Answer

## If Asif is standing in a queue in such a way that he is sixth in the queue from either side, then how many people are there in the queue?

### Answer

## If five cars are parked bumper to bumper, how many bumpers are touching each other?

### Answer

## What is the value of ‘X’, if 2x + 9x = 11?

### Answer

### Solution

## A candidate, appearing for an examination, was asked to find 3/14 of a certain number but mistakenly, he found 3/4 of it. When he cross checked his answer, he found his answer was 150 more than the correct answer. Which number was given in the examination for this calculation?

### Answer

### Detail About MCQs

## In the following question, one or two equation(s) is/are given. On their basis you have to determine the relation between x and y and then give answer I. x^2 + 3x + 2 = 0 II. 2y^2 = 5y

### Answer

### Detail About MCQs

A. 2bc

B. 8b – 10c

C. 8c – 10b

D. 10c -8b

Correct Answer:** D. 10c -8b**

A. X-2

B. A – 2

C. X + 12

D. None of these

Correct Answer: **A. X-2**

A. 3(x – 5)

B. 5(x – 3)

C. 3(x + 5)

D. None of these

Correct Answer: **B. 5(x-3)**

A. 7 days

B. 6 days

C. 5 days

D. 8 days

Correct Answer: **C. 5 days **

A. 24

B. 30

C. 120

D. 240

Correct Answer: **C. 120 **

A. 11

B. 12

C. 9

D. 14

Correct Answer: **A. 11 **

A. 4

B. 5

C. 8

D. 10

Correct Answer: **A. 4 **

A. 9

B. 1

C. 3

D. 0

Correct Answer: **B. 1**** **

2x +9x = 11

11 x = 11

x = 11 / 11

x = 1

A. 160

B. 180

C. 240

D. 280

Correct Answer: **D. 280 **

Let the number be x.

The candidate was asked to find 3/14, i.e. 3/14 of x but mistakenly, he found 3/4 of x, and the difference between these answers = 150

3/4 of x – 3/14 of x = 150

⇒ 3/4 × x − 3/14 × x = 150

⇒ 3x/4 − 3x/14 = 150

⇒ 3x × (1/4 – 1/14) = 150

⇒ 3x (5/28) =150

x = 150 × 28 / 5 × 3 = 280

A. x < y

B. x > y

C. x ≤ y

D. x = y

Correct Answer: **A. x < y **

We will separately solve both equations.

Equation 1:

x^{2} + 3x + 2 = 0

⇒ x^{2} + 2x + x + 2 = 0

⇒ x (x + 2) + 1 (x + 2) = 0

⇒ (x + 2) × (x + 1) = 0

⇒ x = -2 or, x = -1

Equation 2:

2y^{2} = 5y

⇒ 2y^{2} – 5y = 0

⇒ 2y × (y – 5/2) = 0

⇒ y = 0 or, y = -5/2

Both values of y are positive while both values of x are negative.

∴ y > x