Find the value of x if (x/3) + (x/4) = 7.
A12
B15
C18
D21
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Archives: MCQs
The ratio of boys to girls in a school is 5:3. If there are 120 girls, how many boys are in the school?
A180
B200
C220
D240
What is the simplified value of (2^3 * 2^4) / 2^5?
A2
B4
C8
D16
A person sells two articles for Rs. 600 each. On one he gains 20% and on the other he loses 20%. What is the net percentage gain or loss?
A2% profit
B4% loss
CNo profit/loss
D4% profit
The average of 8 numbers is 20. If each number is multiplied by 2, what is the new average?
A20
B30
C40
D50
If 8 men can complete a project in 15 days, how many days will 12 men take to complete the same project?
A8 days
B10 days
C12 days
D14 days
The sum of the digits of a two-digit number is 9. If 27 is added to the number, the digits are reversed. What is the number?
A36
B45
C54
D63
Find the value of (100^2 – 99^2).
A1
B199
C200
D19900
A bag contains 3 red balls and 5 green balls. One ball is drawn at random. What is the probability that it is red?
A3/8
B5/8
C3/5
D1/2
The average age of 3 boys is 15 years. If their ages are in ratio 3:5:7, what is the age of the youngest boy?
A9 years
B12 years
C15 years
D18 years