-4-(-10)

= -4 + 10

= 6

Again,

-10-(-4)

= -10+4

= -6

Now, Difference:

6 - (-6)

= 6 + 6

= 12

Total vote= 250 + 150

                = 400

Fraction of vote that was against him = 150/400

                                                                    = 15 / 40

                                                                   = 3 /8

The quantity of milk in the mixture is

7/(7+2) X 729

= 7/9 X 729

= 567mL

The quantity of water then shall be

729 - 567 = 162mL

If the final mixture would contain half milk and half water, there must be equal quantity of both.

So in order to make up for water, we'll need to add

567mL - 162mL= 405mL of water

Formula:

A = P ( 1 + r/2)2n

and, C.I = A - P Where,

P = principal R = rate in percent p.a.( per annum i.e. annually) n = number of years.

Here, P = 1000,

R = 20% and n = 1 year. Amount after 1 year = P ( 1 + r/2)2n = 1000 ( 1 + 0.20/2)2*1 = 1000 ( 1 + 0.1)2  = 1000 (1.1)2 = 1000 x 1.21 Amount = 1210

∴Compounded Interest=A−P.

C.I=1210−1000

C.I= 210

Go through the options and calculationg by placing the number in their respective place.

While doing 45,

25/45 = 45/81

is seen.

Less than 61, which is dividable by 7 is 56.

Thus, 57th day would be Monday as well.

62th day is (62-57)th or 5th day after Monday.

Thus, After 61 days or 62th day is: Saturday

Mr. B is 3 years senior to Mr. C, Mr. C is 2 years junior to Mr. D in job experience.

Thus, Mr. B is 1 year senior  to Mr. D

Now, If, Job Experience of Mr. D is x

Then,

Mr. B = x+1

And, Mr. A = x + 1 + 5

or, Mr. A = x + 6

Now, we know that, x = 15 years

Thus,

Job experience of Mr. A = 15 + 6 = 21 years

In the question, it asked What is the percentage of motorcycle owners who own cars?

% with both car and motorcycle = (90+15) - 100

                                                          = 5% % motorcycle = 15% now 5/15 = 1/3 = 33 (1/3) %

Walkway is 2 meter.

So, the Length of Garden excluding walkway = 100 - (2*2)

= 96 meter

the Width of Garden excluding walkway = 60 - (2*2)

= 56 meter

Thus,

The are of the garden without the walkway is: (96*56)

= 5376 sq meter

Let x be the length and y be the breadth of the given rectangle.

Now, given that,

x = 6/5 y -------- (660 m²)

and

2 x + 2 y = 132 -------- (2210m²)

Substituting x in 2210m²2) by results in (660m²),

we get,

2 (6/5 y) + 2 y = 132; or 12/5 y + 2 y = 132.

Multiplying both sides by 5, we get,

12 y + 10 y = 660;

22 y = 660

y = 30.

Since x = 6/5 y, x = 6/5 * 30 = 36. Therefore, area = x * y = 36 * 30

= 1080 m².

In case of fraction numbers, that is, a number between 0 and 1, the value decreases with the increase in power.

x=√(y/x)

or, x2 = (y/x)

or, x3 = y

6 gallons removed in 1 minute

1800 gallons will be removed in 1800 / 6 minutes

                                                        = 300 minutes

                                                        = (300 / 60) hours                                 & 

Only in the case of fraction numbers, the value decreases with the increase in power.

y(4x-2/4)= y

and, y ≠ 0

So,

4x-2/4 = 1

or, 4x = 1 - 2/4

or, 4x = 2/4 = 1/2

or, x = 1/(2*4) = 1/8

(√25+√25)2 = (5 + 5)2

                     = (10)2

                     = 100

Machine A:

In 40 seconds produces 120 bolts

In 1 second produces 120 / 40 bolts = 3 bolts

Machine B:

In 20 seconds produces 100 bolts

In 1 second produces 100 / 20 bolts = 5 bolts

So,

In 1 second with both machine simultaneously working,

Produces = 3 + 5 bolts = 8 bolts

Thus,

8 bolts is produced in 1 second

200 bolts is produced in (1 * 200) / 8 seconds

                                    = 25 seconds

If the whole pond is 1.

Mud and water portion = 0.20 + 0.50 = 0.70 unit

So, portion of the pole above the water = (1 - 0.70) unit

                                                             = 0.30 unit

Now,

0.30 is above water when the whole pole is 1 unit

6 feet is above water when the whole pole is (1 * 6) / 0.30 feet

35% * X = 25% * Y

or, 35X = 25Y

or, X /Y = 25 / 35

      = 5 / 7

or, X : Y = 5 : 7

Sum of money = X taka

7/12 th of the money = (7* X) / 12

Due to Shanto's mistake, he found the value of:

12 / 7 th of the money = (12 * X) / 7

Now,

(12*X)/7 - (7*X)/12 = 95

or, (144X - 49X) / 84 = 95

or, 95X / 84 = 95

or, X = (95 * 84) / 95

or, X = 84

Kamal < Ruhan

Kamal > Anika

Kamal > Dina

Rubayet < Ruhan

Rubayet > Kamal or, Kamal < Rubayet

Thus, Ruhan is the tallest.

Each letter is 4 letters apart from each other.

C D E F G

H I J K L

M N O P Q

R S T U V

W X Y Z A B

x*x : y*y = 2 : 1

x : y = square root (2) : 1

At first,

16 persons = X taka

1 person = X / 16 taka

Afterward,

10 persons = X taka

1 person = X / 10 taka

Now,

The difference would be:

(X/10) - (X/16) = (8X - 5X) / 80

                      = 3X / 80