Question: The fourth proportional to 5, 8, 15 is: [A]. 18 [B]. 24 [C]. 19 [D]. 20 Answer: Option B Explanation: Let the fourth proportional to 5, 8, 15 be x. Then, 5 : 8 : 15 : x 5x…

Question: In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to be 1 : 2, then the quantity of water to be further added is: [A]. 20 litres [B]. 30 litres…

Question: If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number? [A]. 2 : 5 [B]. 3 : 7 [C]. 5 : 3 [D]. 7 : 3…

Question: A sum 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? [A]. Rs. 500…

Question: The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio? [A].…

Question: 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…

Question: Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is: [A]. 2 : 5 [B]. 3 : 5 [C]. 4 : 5 [D]. 6 : 7 Answer: Option C Explanation:…

Question: A and B together have Rs. 1210. If of A’s amount is equal to of B’s amount, how much amount does B have? [A]. Rs. 460 [B]. Rs. 484 [C]. Rs. 550 [D]. Rs. 664 Answer: Option B Explanation:…

Question: The sum of three numbers is 98. If the ratio of the first to second is 2 :3 and that of the second to the third is 5 : 8, then the second number is: [A]. 20 [B]. 30…

Question: Salaries of Ravi and Sumit are in the ratio 2 : 3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40 : 57. What is Sumit’s salary? [A]. Rs. 17,000 [B]. Rs. 20,000…