Mathematics Mcqs — Test 23
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Question 1
A class has 90 students. If the ratio of boys and girls is 7:8, find the number of boys in the class.
Question 2
The ratio of boys and girls in a class was 11:13. 8 girls and 4 boys join the class from this academic year and the ratio becomes 4:5. Find the strength of the class.
Question 3
The perimeter of a triangle is 81 cm. If the sides are in the ratio 4:3:2, find the length of the largest side.
Question 4
In what ratio should the profit of Rs.8000 be divided if X starts a business with an investment of Rs. 20000, Y invests Rs.7500 for 4 months and Z invests Rs.15000 after 3 months from the start of the business.
Question 5
The length and breadth of a rectangle are in the ratio 5:4. Find its perimeter if its area is 180 cm²
Question 6
Solve for x 2x:25 = 6:(x/3)
Question 7
x is 20% more than z and y is 80% more than z. Find x:y.
Question 8
A, B, C and D divide a sum of money among themselves in the ratio 7:4:3:2. If D gets Rs. 500 less than A, find the total amount.
Question 9
Two kinds of rice, 1st costs Rs.13 per kg and 2nd costs Rs.19 per kg are mixed together. Find the ratio in which the 2 types are mixed so that the mixture costs Rs.14.2 per kg?
Question 10
X, Y and Z are quantities of the same kind such that X:Y=5:8 and Y:Z=4:7. Find X:Z.