Average, Mixture & Alligation II Quantitative Aptitude II MH-CET 2021 II 10 August

The average weight of a group of 12 persons increased by 2.5 kg when 3 men of 40 kg, 38 kg and 42 kg are replaced by 3 women. What will be the average weight of 3 women?

There are 50 students in a college and due to the admission of 10 new students, the total expenditure of the college increases by Rs. 25 per day but the average expenditure per head decreases by Rs. 3, then what is the original expenditure of college for 1 day?

In an IT company the sum of the age of all 200 members is 6600 years. If the age of each consultant, developer and HR be less by 2.5 years, 15 years, 7.5 years respectively and the number of HR & consultant is 40 & 120 respectively, what will be the average age of all members of company?

A grocer has a sale of Rs.3250, Rs.2955, Rs.3682 and Rs.4943 respectively from January to April. His average sale from January to July was Rs.3096 per month. If his sale was in the ratio 1: 2: 1 for May, June and July, what is the difference between the sales in the month March and July?

The average of a batsman for 40 innings is 50 runs. His highest score exceeds his lowest score by 172 runs. If these two innings are excluded, his average drops by 2 runs. Find his highest score.

How many kgs of one pulse costing Rs. 8 per kg should be mixed with 8 kg of another pulse costing Rs. 14 per kg to sell it at Rs. 12 earning a profit of 20%?

In an alloy, zinc and copper are in the ratio 4 : 5. In the second alloy, the same elements are in the ratio 8 : 5. If these two alloys be mixed to form a new alloy in which two elements are in the ratio 3 : 2. Find the ratio of in which these two alloys were mixed.

A man has milk worth Rs. 27 per liter and another worth Rs. 23 per liter. Equal quantities of these are mixed with water to obtain a mixture of 30 liters worth Rs. 20 per liter. Find how much water the mixture contains.