111. The fourth proportional to 10, 12, 15 is:
112. Alloy A contains copper and zinc in the ratio of 4 : 3 and alloy B contains copper and zinc in the ratio of 5 : 2. A and B are taken in the ratio of 5 : 6 and melted to form a new alloy. The percentage of zinc in the new alloy is closest to:
113. One cup has juice and water in the ratio 5 : 2, while another cup of the same capacity has them in the ratio 7 : 4, respectively. If contents of both the cups (when full) are poured in a vessel, then what will be the final ratio of water to juice in the vessel?
114. A box contains 280 coins of one rupee, 50 paise and 25 paise. The value of each kind of the coins are in the ratio of 8 : 4 : 3. Then the number of 50 paise coins is
115. In a school, $$\frac{3}{8}$$ of the number of students are girls and the rest the are boys. One third of the number of boys are below 10 years and $$\frac{2}{3}$$ of the number of girls also below 10 years. If the
number of students of age 10 or more years is 260, then the number of boys in the school is:
116. When 5 children from class A join class B, the number of children in both classes is the same. If 25 children from B, join A, then the number of children in A becomes double the number of children in B. The ratio of the number of children in A to those in B is:
117. A person divided a certain sum between his three sons in the ratio 3 : 4 : 5. Had he divided the sum in the ratio $$\frac{1}{3}:\frac{1}{4}:\frac{1}{5},$$ the son, who got the least share, would have got Rs. 1,188 more. The sum in (in Rs.) was:
118. Salaries of B, C, D and E are in the ratio of 2 : 3 : 4: 5 respectively. Their salaries are increased by 20 percent, 30 percent, 40 percent and 50 percent respectively. If the increased salary of D is Rs. 560, then what is the sum of the original salaries of B, C, D and E?
119. A sum of Rs. 46,800 is divided among A, B, C and D in such a way that the ratio of the combined share of A and D to the combined share of B and C is 8 : 5. The ratio of the share of B to that of C is 5 : 4. A receives Rs. 18,400. If x is the difference between the share of A and B and y is the difference between the share of C and D, then what is the value of (x - y) (in Rs.)?
120. If a, b and c are positive numbers such that (a2 + b2) : (b2 + c2) : (c2 + a2) = 34 : 61 : 45, then b - a : c - b : c - a = . . . . . . .
Read More Section(Ratio)
Each Section contains maximum 100 MCQs question on Ratio. To get more questions visit other sections.