3
Q:

# The average of a set of whole numbers is 27.2. when the 20% of the elements are eliminated from the set of numbers then the average become 34. The number of elements in the new set of numbers can be :

 A) 27 B) 35 C) 52 D) 63

Answer:   C) 52

Explanation:

only (c) is correct since it is divisible by 4.

Let the original number of element  be x then the new no.of elements will be

So K must be divisible by 4

Since,      x =  Kx5/4

Q:

125% as a Fraction?

 A) 1/4 B) 3/4 C) 5/4 D) 7/4

Answer & Explanation Answer: C) 5/4

Explanation:

Literally any percentage means divide by 100.

So . That can be reduced to 5/4.

To convert to a decimal, you can do long division, dividing 5 into 4.

Report Error

0 8
Q:

A merchant commences with a certain capital and gains annually at the rate of 30 per cent. At the end of 2 years he has worth Rs 10,000. What was the original capital?

 A) Rs. 4987 B) Rs. 5148 C) Rs. 5917 D) Rs. 6254

Answer & Explanation Answer: C) Rs. 5917

Explanation:

Let the Original capital amount be Rs. P

Given after 2 years the amount is Rs. 10000

Rate of interest = 30%

According to the question,

Therefore, the capital amount P = Rs. 5917

Report Error

1 33
Q:

5% of 40,000 is

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

Answer & Explanation Answer: B) 2000

Explanation:

5% of 40,000  =

Hence, 5% of 40,000 = 2,000.

Report Error

3 114
Q:

40% of 80?

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

Answer & Explanation Answer: B) 32

Explanation:

Here 40% of 80 is given as

Report Error

4 183
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

Answer & Explanation Answer: 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.

Report Error

4 216
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

Answer & Explanation Answer: 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.

Report Error

4 324
Q:

100 percent of which number is 20?

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

Answer & Explanation Answer: C) 20

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.

Report Error

11 292
Q:

74.99% of 1299 + 8.98% of 1899 = ?

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

Answer & Explanation Answer: C) 1212

Explanation:

74.99% of 1299 + 8.98% of 1899 = ?

Report Error

3 265