36 of what number is 18?

Correct Answer: 24000

Explanation:

Let the total population be 'P'

P x (96/100) = 23040

P = 240 * 100

P = 24000.

Correct Answer: 25%

Explanation:

Here, k = 7 and l = 28
Therefore, first number = k lx100 % of second number = 7/28 x 100% of second number = 25% of second number.

Correct Answer: 87400

Explanation:

Let X be the total amount with Ramesh

Given 28% of X = Cash remaining

=> Amount spent = 72% of X = 38460 + 24468 = 62928

=> 72% of X = 62928

=>  X = ?

=> X = 87400

Correct Answer: 7.11

Explanation:

16 of 225 is = 

$$\begin{gathered} 16 = p × 225 100 \\ p = 1600 225 = 7 . 1111 \end{gathered}$$

Correct Answer: 18.75%

Explanation:

Given that to find 15 of 80

=> What % of 80 is 15

Let it be 'p'

=> p% of 80 = 15

=>  $$\begin{gathered} p x 80 100 = 15 \\ ? p = 15 x 100 80 \\ ? p = 1500 80 = 18 . 75 \end{gathered}$$

 

Therefore, 15 is 18.75% of 80 => 18.75% of 80 = 15

 

Example::

Now, in the similar way we can find 15% of 80 =?

=> 15x80/100 = p

=> p = 4 x 3 = 12

 

Therefore, 15% of 80 = 12

Correct Answer: 0.625%

Explanation:

From the given data,

let the amounts invested be 4p, 5p and 3p

Net profit = Total profit - Total loss

= 10x5p/100 + 25x3p/200 - 20x4p/100

= 0.875p - 0.8p

= 0.075p

Therefore, profit% = (Net profit/Total investment) x 100

= 0.075 x 100/12 

= 0.0625%

Correct Answer: Rs.5000

Explanation:

Let a, b and c be the amounts invested in schemes X, Y and Z respectively. Then,

As we know:

Simple interest (S.I.) = PTR/100

(a × 10 × 1/100) + (b × 12 × 1/100) + (c × 15 × 1/100) = 3200

= 10a + 12b + 15c = 320000 .........(1)

Now, c = 240% of b = 12b/5 .........(2)

And, c = 150% of a = 3a/2 => a = 2/3 c = (2 × 12)b/(3 × 5) = 8b/5 .......(3)

From (1), (2) and (3), we have

16b + 12b + 36b = 320000 => 64b = 320000 => b = 5000

? Sum invested in Scheme Y = Rs.5000.

Correct Answer: Rs. 15000

Explanation:

It won't requires that much solving.

Here given the increase in weekly collection by Rs. 1,05,000

That is this increase denotes for all 7 days.

=> Gross Collection increase per day = Rs . 1 , 05 , 000 7 = Rs . 15 , 000

Hence, the gross collection increase per day = Rs. 15,000.

Correct Answer: 1212

Explanation:

74.99% of 1299 + 8.98% of 1899 = ? 

$$\begin{gathered} ? = 75 x 1400 100 + 9 x 1800 100 \\ ? = 1050 + 162 \\ ? = 1212 . \end{gathered}$$

Correct Answer: 78%

Explanation:

Let Akhil's weight = p kg

=> Shreyon's weight = 2p kg

Nani's weight = 0.9 x 2p = 1.8p kg

=> Arun's weight = 1.4p kg

Required percentage = 1 . 4 p 1 . 8 p x 100

= 77.8%

~= 78%