All-in-One Exam Prep Platform

Explanation

3x:2X

3X=2X+5 3

X-2X=5

X=5

Age of younger one is 2X

 X is 5 that is equal to 5×2=10

ND11-3-2023

SH25-8-2023

Explanation

Total number of votes polled$=(1136+7636+11628)=20400$
$\therefore$  Required Percentage

$=(\frac{11628}{20400}\times 100)$%
$=57$%

OR

Total number of votes polled

= (1,136 + 7,636 + 11,628)

= 20,400

Calculate percentage

= (11,628 / 20,400×100)

= 57%

Explanation

So in this way the next number in the sequence, 0, 3, 8, 15, 24, 35

From the given series the logic is adding odd numbers in the series

0 + 3 = 3

3 + 5 = 8

8 + 7 = 15 

15 + 9 = 24

24 + 11 = 35

Explanation

Number of boys present: 50% of 100 = 0.5 x 100 = 50 boys

Number of girls present: 40% of 900 = 0.4 x 900 = 360 girls

Total students present = Boys present + Girls present

= 50 + 360

= 410

Now, let's find the percentage of students present:

Total students = Boys + Girls = 100 + 900 = 1000

Percentage of students present = (Total students present / Total students) x 100

= (410 / 1000) x 100

= 41%

Explanation

Given ratio: 50 paisa:1 rupee:2 rupee = 2:5:8

Let's assume the number of coins of each denomination are:

50 paisa = 2x

1 rupee = 5x

2 rupee = 8x

Total amount = Rs. 352

The value of coins is:

50 paisa coins = 2x * 0.50 = Rs. x

1 rupee coins = 5x * 1.00 = Rs. 5x

2 rupee coins = 8x * 2.00 = Rs. 16x

Adding these values, we get:

x + 5x + 16x = 352

Combine like terms:

22x = 352

Divide by 22:

x = 16

Now, find the total number of coins:

50 paisa coins = 2x = 2(16) = 32

1 rupee coins = 5x = 5(16) = 80

2 rupee coins = 8x = 8(16) = 128

Total number of coins = 32 + 80 + 128 = 240

So, the correct answer is: 240

Explanation

If mango juice is 20%, then apple juice is 80% (since 100% – 20% = 80%).

The ratio of mango to apple juice is 20:80, which simplifies to 1:4.

Explanation

That makes it 4 x 20 to get the total sum which is 80

80=5+10+15+x

80–30=x

50=x

Explanation

Let's find the purchase price (cost price):

Selling price = Rs 25,000

Loss percentage = 20%

Let the cost price be x.

Since Naeem suffered a 20% loss:

Selling price = Cost price - Loss

25,000 = x - 0.20x

25,000 = 0.80x

Divide both sides by 0.80:

x = 25,000 / 0.80

x = 31,250

Explanation

Given:

Time taken by 6 men to complete work= 10 days

Solution:

Time taken by 1 man = 6 x 10 = 6o hours

The time taken by 4 men to complete the work:

60/ 4 = 15 hours.

Explanation

n(A) = 75% of 600 = 450

n(B) = 45% of 600 = 270 and n(A ∪ B) = 600

∵ n(A∩B) = n (A) + n(B) - n(A∪B) = (450 + 270 - 600) = 120