A. Depends on compounding frequency
B. Is the same every year
C. Decreases each year
D. Is added to principal for next year’s interest
Answer: B
Why: SI is linear; equal interest each period.
Tag: math mcqs for competitive exams
A number is divisible by 3 if:
A. Last digit is even
B. Last two digits form a number divisible by 4
C. Sum of digits is divisible by 3
D. Ends with 0 or 5
Answer: C
For positive integers a,b:
A. LCM (a,b) +gcd (a,b)=ab
B. LCM (a,b)× gcd (a,b)=ab
C. LCM=a+b
D. gcd =a−b
Answer: B
For same𝑃,𝑅,𝑇>1 which is larger?
A. Simple Interest
B. Compound Interest
C. Both equal
D. Depends on 𝑃
Answer: B
Two successive discounts of 20% and 30% are equivalent to a single discount of:
A. 44%
B. 50%
C. 56%
D. 60%
Answer: A
Why:
1−(0.8×0.7)=0.44
Profit percent is calculated on:
A. Selling price
B. Marked price
C. Cost price
D. Discount
Answer: C
An increase of𝑥% followed by a decrease of𝑥%(with𝑥>0) results in:
A. No change
B. Always an increase
C. Always a decrease
D. Depends on the numbers
Two quantities are directly proportional if:
A. Their product is constant
B. Their ratio is constant
C. Both increase by the same amount
D. Both decrease by the same amount
Answer: B
Which statement about ratios is TRUE?
A. Adding the same number to both terms keeps the ratio unchanged
B. Multiplying both terms by the same non-zero number keeps the ratio unchanged
C. Dividing only the first term by a number keeps the ratio unchanged
D. Subtracting the same number from both terms keeps the ratio unchanged
Answer: B
Why: Ratios are scale-invariant under common multiplication/division.
What is 25% of 200?
a) 40
b) 50
c) 60
d) 70
Solution:
25÷100×200 = 0.25
200 = 50
Answer: 25% of 200
= 50