PERCENTAGE MCQ SET 6
Q1. The base of a triangle is increased by 40% . By what percentage (Correct to two decimal places) should its height be increased so that the area increases by 60% ?
(a)15.54%
(b)20.01%
(c)14.29%
(d)1862%
Answer: C
Q2. Base of a triangle is increased by 33 1/3% and is height is reduced by 16 2/3% . Find the percentage change in area of triangle?
(a)20%
(b)None of these
(c)16 2/3%
(d)11 1/9%
Answer: D
Q3. Base of a triangle is increased by 16 2/3% and its height is reduced by 33 1/3% . Find the percentage change in area of triangle?
(a)20%
(b)22 2/9%
(c)16 2/3%
(d)11 1/9%
Answer: B
Q4. Length of rectangle is increased by 50% . Then its area is increased by 20% . Find effect on breadth of the rectangle .
(a)20% decrease
(b)25% increase
(c)20% increase
(d)25% decrease
Answer: A
Q5. The area of a circle is increased by 69% then its radius will increase by what percent .
(a)10% increase
(b)20% increase
(c)30% increase
(d)40% increase
Answer: B
Q6. The area of a circle is increased by 44% then its radius will increase by what percent.
(a)10% increase
(b)20% increase
(c)30% increase
(d)40% increase
Answer: D
Q7. The area of square is increased by 32.25% . Find the percentage increase in each side of square .
(a)10% increase
(b)15% increase
(c)20% increase
(d)25% increase
ย Answer: B
Q8. If the area of a square is decreased by 19% , then the diagonal of the square is decreased by:
(a)15%
(b)10%
(c)5%
(d)12%
Answer: B
Q9. Length of cuboid is increased by 20% , breadth is increased by 30% and height is decreased by 50% . Find effect on volume .
(a)22% increase
(b)22% decrease
(c)11% increase
(d)11% decrease
Answer: B
Q10. If length and breadth of a cuboid are increased by 7% and 6% , respectively , then the percentage increase in its volume is:
(a)11.20%
(b)13.42%
(c)18.12%
(d)15.25%
Answer: B
Leave a Reply