8
Q:

# In a competitive examination, the average marks for the entire examination was 60 marks. If 20% of the applicants scored 85 marks and 25% scored 95 marks. What was the average marks of the remaining applicants in the examination ?

 A) 60 B) 52 C) 45 D) 35

Explanation:

Let the total applicants be 100

Then, 20% got 85 marks

i.e 20 x 85 = 1700

and 25% got 95 marks

i.e 25 x 95 = 2375

Now, the remaining applicants are 55 and let the average marks scored by them be x.

Therefore, 2375 + 1700 + 55x  =  $60×100$

6000 - 4075 = 55x

55x=1925

x=35.

Q:

5% of 40,000 is

 A) 20000 B) 2000 C) 200 D) 20

Explanation:

5% of 40,000  =

Hence, 5% of 40,000 = 2,000.

3 100
Q:

40% of 80?

 A) 36 B) 32 C) 42 D) 44

Explanation:

Here 40% of 80 is given as

4 167
Q:

In order to maximize his gain, a shopping mall owner decides to reduce the price of electronics goods by 20% and as a result of this, the sales of electronics increase by 40%. If, as a result of these changes, he is able to increase his weekly collection by Rs. 1,05,000, find by what value did the gross collection increase per day?

 A) Rs. 14400 B) Rs. 14600 C) Rs. 14800 D) 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 =

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

4 205
Q:

Fresh grapes contain 60% water, while dry grapes contain 40% water. How many kgs of dry grapes can be obtained by 60 kg of fresh grapes?

 A) 25 kgs B) 30 kgs C) 35 kgs D) 40 kgs

Explanation:

The fruit content in both the fresh fruit and dry fruit is the same.

Let 'p' kgs of dry grapes are obtained from the 60 kgs of fresh grapes

=>

Therefore, 40 kgs of Dry grapes are obtained from 60 kgs of Fresh grapes.

4 308
Q:

100 percent of which number is 20?

 A) 100 B) 500 C) 20 D) 0

Explanation:

Let the rquired number be 'P'

According to the question,

Hence, 100 percent of the number 20 is 20.

Now, you can also try for

20 percent of what number is 100

Hence, 20 percent of the number 500 is 100.

11 276
Q:

74.99% of 1299 + 8.98% of 1899 = ?

 A) 1378 B) 1301 C) 1212 D) 1197

Explanation:

74.99% of 1299 + 8.98% of 1899 = ?

3 256
Q:

Arun’s weight is 140% of Akhil’s weight. Nani’s weight is 90% of Shreyon’s weight. Shreyon’s weight is twice as much as Akhil’s. What percentage of Arun’s weight is Nani’s weight?

 A) 76% B) 77% C) 78% D) 79%

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 =

= 77.8%

~= 78%

7 474
Q:

Write 0.125 as a percent %?

 A) 12% B) 12.5% C) 13% D) 13.5%

Explanation:

Here to convert 0.125 into %

First convert to fractio

Multiply and divide by 1000

=>

=> Now,