12
Q:

# One-third of the boys and one-half of the girls of a college participated in a sport. If the number of participating students is 300, out of which 100 are boys. What is the total number of students in the college?

 A) 500 B) 300 C) 600 D) 700

Explanation:

Let number of boys in the school = x

Let number of girls in the school = y

Number of students participated in the sports = 300

Out of which boys = 100

but given number of boys participated in sports = x/3

=> x/3 = 100

=> x = 300

Remaining girls = 300 - 100 = 200

=> y/2 = 200

=> y = 400

Therefore, total number of students in the school = x + y = 300 + 400 = 700

Q:

82.5% of 2360?

 A) 1960 B) 1954 C) 1947 D) 1931

Explanation:

Given 82.5% of 2360

1 48
Q:

When the price of whear was increased by 32%, a family reduced its consumption in such a way that the expenditure on wheat was only 10% more than before. If 30 kg per month were consumed before, find the new monthly consumption of family?

 A) 27 kgs B) 25 kgs C) 24 kgs D) 21 kgs

Explanation:

Initial wheat per kg cost be Rs. 100

Then, monthly expenditure of the family = 30 x 100 = 3000

After increase in cost,

Let P be new monthly consumption of family.

P x 132 = 110/100 x 3000

=> P = 25 kg.

0 269
Q:

12% of 70,000 is

 A) 8400 B) 7200 C) 6000 D) 5600

Explanation:

12% of 70,000

=> 12 x 70,000/100

=> 8400

Hence, 12% of 70,000 = 8,400

2 259
Q:

3 is what percent of 5?

 A) 45% B) 60% C) 72% D) 80%

Explanation:

Here it is asked that 3 is what percent of 5

Let 3 is K percent of 5.

=> K x 5/100 = 3

=> K = 300/5 = 60

Hence, 3 is 60% of 5.

5 857
Q:

of 259.99 = ? % of 1247.9

 A) 96 B) 100 C) 78 D) 88

Explanation:

Given

of 259.99 = ? % of 1247.9

24/5 x 260 = ? x 1248/100

? = 1248 x 100/1248

? = 100.

5 789
Q:

Which value is equal to 5% of 1,500?

 A) 35 B) 55 C) 75 D) 45

Explanation:

In the question it is asked for 5% of 1500

5 x 1500/100 = 15 x 5 = 75.

Hence, 5% of 1,500 is equal to 75.

10 725
Q:

80% of 900 + $162$ x 4 x ? =

 A) 0.5 B) 1 C) 4 D) 0

Explanation:

80x900/100 + 256 x 4 x ? = 1331 - 99

720 + 1024 x ? = 1232

? = 1232 - 720/1024

? = 512/1024 = 0.5

? = 0.5

8 689
Q:

What is 70 of 50?

 A) 35 B) 38 C) 42 D) 44

Explanation:

what is 70 of 50 means 70% of 50

Hence, 70 of 50 is 35.