Ratio and Proportion Aptitude Test Paper 416) Rs 7800 are distributed among A, B, and C. The share of "A" is the ¾ of the share of B, and the share of B is the 2/3 of the share of C. Find the difference between the share of B and C.
Answer: A Explanation: The share of A: B is 3: 4 Note: Whenever such form is given, multiply a to b, then b to b, and then b to c. i.e., A: B: C = 3*2: 4*2: 4*3 The difference between the share of B and C = 3600 2400 = 1200 17) A bag contains Rs 410 in the form of Rs 5, Rs 2, and Rs 1 coins. The number of coins is in the ratio 4: 6: 9. So, find the number of 2 Rupees coins.
Answer: C Explanation: ATQ, if the ratio of coins = 4: 6: 9 According to the given ratio, the ratio of amounts = 5*4: 6*2: 9*1 = 20: 12: 9 The total amount in the form of two rupees coins = 120 18) The ratio of copper and zinc in a 63 kg alloy is 4: 3. Some amount of copper is extracted from the alloy, and the ratio becomes 10: 9. How much copper is extracted?
Answer: B Explanation: Amount of copper in alloy = [copper ratio/ sum of ratios]* total quantity of alloy Copper = {4/7}* 63 = 36 kg 19) The ratio of land and water on earth is 1: 2. In the northern hemisphere, the ratio is 2: 3. What is the ratio in the southern hemisphere?
Answer: D Explanation: The ratio of land: water = 1: 2 Note: Earth is divided equally into two hemispheres called northern hemisphere and southern hemisphere. i.e., the northern hemisphere is 50% of the total earth. We can say southern hemisphere = total area northern hemisphere. To make the northern hemisphere 50% of the total area Subtract equation i by ii Hence, southern hemisphere = 10 6: 209 = 4: 11 20) Vessels A and B contain mixtures of milk and water in the ratios 4: 5and 5: 1respectively. In what ratio should quantities of the mixture be taken from A and B to form a mixture in which milk to water is in the ratio 5: 4?
Answer: C Explanation: Let the quantity of vessels A and B in the ratio x: y to form a mixture of water and milk in the ratio 4: 5. Now, ATQ quantities of the mixture should be taken from A and B. Ratio and Proportion Aptitude Test Paper 1 Ratio and Proportion Aptitude Test Paper 2 Ratio and Proportion Aptitude Test Paper 3 Ratio and Proportion Concepts
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