Explanation

Let Aman's present age be x

Aslam's age before 10 years = (x - 10)

Aslam's age after 20 years = (x + 20)

According to question,

Aslam's age after 20 years (x + 20) is 10 times his age 10 years back (x – 10)

Therefore, (x + 20) = 10 (x – 10)

Solving the equation,

we get x + 20 = 10x – 100

9x = 120,

x = 13.3 years

Explanation

answer is 26.99 as product of means=product of extremes 144*x=23*169 144*x=3887 x=3887/144 x=26.99

Explanation

24 % of 2

Let 24 % of 2 = x

24 * 1/100 * 2 = x

48/100 = x

12/25 = x

x = 12/25 = 0.48

Explanation

200/2 = 100, remainder is 0

100/2 = 50, remainder is 0

50/2 = 25, remainder is 0

25/2 = 12, remainder is 1

12/2 = 6, remainder is 0

6/2 = 3, remainder is 0

3/2 = 1, remainder is 1

1/2 = 0, remainder is 1

Explanation

To convert the binary number $11000111$to decimal:

1. Write down the binary number: $11000111$
   
2. Identify each bit's position from right to left: $2^0,2^1,2^2,2^3,2^4,2^5,2^6$
3. Assign the binary digits to their respective positions: $1<font\; color="\#0000ff">,</font>\mathrm{<font\; color="\#0000ff">1</font>}<font\; color="\#0000ff">,</font>\mathrm{<font\; color="\#0000ff">0</font>}<font\; color="\#0000ff">,</font>\mathrm{<font\; color="\#0000ff">0</font>}<font\; color="\#0000ff">,</font>\mathrm{<font\; color="\#0000ff">0</font>}<font\; color="\#0000ff">,</font>\mathrm{<font\; color="\#0000ff">1</font>}<font\; color="\#0000ff">,</font>\mathrm{<font\; color="\#0000ff">1</font>}$
   

Now, calculate the decimal value:

$1\times 2^6+1\times 2^5+0\times 2^4+0\times 2^3+0\times 2^2+1\times 2^1+1\times 2^0$

$=64+32+0+0+0+2+1$

$=99$

So, the decimal value of $11000111$ is $99$

Therefore, the correct answer for the MCQ would be: $$99.

Explanation

In this type of question, We need to find out the LCM of the given numbers.

LCM of 12, 15, 18 and 20;

12=2×2×3;15=3×5;18=2×3×3;20=2×2×5;

Hence, LCM = 2×2×3×5×3

Since, the soldiers are in the form of a solid square.

Hence, LCM must be a perfect square. To make the LCM a perfect square, We have to multiply it by 5,

hence,

The required number of soldiers

= 2×2×3×3×5×5

= 900

Explanation

6+27/3*9

=6+((27/3)*9)

=6+(9*9)

=6*81

=87

Explanation

Explanation

Let suppose Zain age is = x years

Nasir age is = 4x years

x + 4x = 60 years 

5x = 60 years 

x = 12 years 

Explanation

x a x b

x 3 x 4

Area = 12_2

Area 6 cm2