Ratio & Proportion Mcqs

Q.  The length and breadth of a rectangle are in the ratio 5:4. Find its perimeter if its area is 180 cm²

a. 54 cm
b. 27 cm
c. 12 cm
d. 15 cm


ANSWER: See Answer
 
Let the length and breadth be 5x cm and 4x cm.
5x*4x=180
20x²=180
x²=9,x=3 Length = 15cm Breadth = 12cm Perimeter
= 2(l+b)
= 2*27
= 54 cm
MCQs:  The sum of squares of three numbers is 280. If the numbers are in the ratio 3:5:6, find the greatest number.
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  If a flat costs Rs.4500 per sq. ft, and a commercial space costs Rs.9500 per sq. ft, then what is the ratio of their areas if the total cost of both are the same?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  The sum of three numbers is 172. The ratio of the first and second numbers is 8:11. The ratio of the second and third is 5:7. Find the second number.
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  4 singers, 5 dancers and 3 comperes divide an amount of Rs.130000 among themselves such that 3 comperes get as much as 2 dancers and 3 dancers get as much as 2 singers. Find the amount received by a singer.
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  The sum of cubes of two numbers is 280. If the numbers are in the ratio 2:3, find the smallest number.
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  Find the value of x when y = 5, if x varies directly as 4y-1 and x = 14 when y = 2.
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  The number of seats available for Biology and Computer Science in a school is in the ratio 5:8. They are to be increased by 30% and 25% . Find the new ratio.
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A:B=2:3, B:C=3:4, A:D=4:5. Find C:D.
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  Find the fourth proportion to 3, 7 and 9.
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number ?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats ?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  Two numbers are in the ratio 3 : 5. If 9 is subtracted from each, the new numbers are in the ratio 12 : 23. The smaller number is :________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is :__________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A surn of money is to be distributed among A, B, C, D in the proportion of 5 : 2 : 4 : 3. If C gets Rs. 1000 more than D, what is B’s share ?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  The ratio of the number of boys and girls in a college is 7 : 8. If the percentage iikcrease in the number of boys and girls be 20% and 10% respectively, what will be the new ratio ?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  The sum of three numbers is 98. If the ratio of the first to the second is 2 : 3 and that of the second to the third is 5 : 8, then the second number is :__________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  6 of 5/8 / 5/8 – 1/8 = ______?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  (22 * 495 + 891 * 44) / (33 * 176 + 55 * 264) = _________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  [(62.25/2.5) + (12.5/0.5)] / [(0.75 * 9) + (3.5 * 3.5)] = _________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts